A layer of the peritoneum which attaches the abdominal viscera to the ABDOMINAL WALL and conveys their blood vessels and nerves.
The circulation of blood through the BLOOD VESSELS supplying the abdominal VISCERA.
The minute vessels that collect blood from the capillary plexuses and join together to form veins.
Veins which return blood from the intestines; the inferior mesenteric vein empties into the splenic vein, the superior mesenteric vein joins the splenic vein to form the portal vein.
Molecular products metabolized and secreted by neoplastic tissue and characterized biochemically in cells or body fluids. They are indicators of tumor stage and grade as well as useful for monitoring responses to treatment and predicting recurrence. Many chemical groups are represented including hormones, antigens, amino and nucleic acids, enzymes, polyamines, and specific cell membrane proteins and lipids.
A rare intra-abdominal tumor in the MESENTERY. Mesenteric cysts are usually benign and can be very large fluid-filled (2000 mL) lesions.
Tomography using x-ray transmission and a computer algorithm to reconstruct the image.
The total amount (cell number, weight, size or volume) of tumor cells or tissue in the body.
Serum glycoprotein produced by activated MACROPHAGES and other mammalian MONONUCLEAR LEUKOCYTES. It has necrotizing activity against tumor cell lines and increases ability to reject tumor transplants. Also known as TNF-alpha, it is only 30% homologous to TNF-beta (LYMPHOTOXIN), but they share TNF RECEPTORS.
Tumors or cancer of the PERITONEUM.
A cell line derived from cultured tumor cells.
A sarcoma containing large spindle cells of smooth muscle. Although it rarely occurs in soft tissue, it is common in the viscera. It is the most common soft tissue sarcoma of the gastrointestinal tract and uterus. The median age of patients is 60 years. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1865)
A usually small, slow-growing neoplasm composed of islands of rounded, oxyphilic, or spindle-shaped cells of medium size, with moderately small vesicular nuclei, and covered by intact mucosa with a yellow cut surface. The tumor can occur anywhere in the gastrointestinal tract (and in the lungs and other sites); approximately 90% arise in the appendix. It is now established that these tumors are of neuroendocrine origin and derive from a primitive stem cell. (From Stedman, 25th ed & Holland et al., Cancer Medicine, 3d ed, p1182)
A tumor composed of spindle cells with a rich vascular network, which apparently arises from pericytes, cells of smooth muscle origin that lie around small vessels. Benign and malignant hemangiopericytomas exist, and the rarity of these lesions has led to considerable confusion in distinguishing between benign and malignant variants. (From Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1364)
A cystic growth originating from lymphatic tissue. It is usually found in the neck, axilla, or groin.
A benign tumor composed of fat cells (ADIPOCYTES). It can be surrounded by a thin layer of connective tissue (encapsulated), or diffuse without the capsule.
Arteries which arise from the abdominal aorta and distribute to most of the intestines.
The fold of peritoneum by which the COLON is attached to the posterior ABDOMINAL WALL.
A neural crest tumor usually derived from the chromoreceptor tissue of a paraganglion, such as the carotid body, or medulla of the adrenal gland (usually called a chromaffinoma or pheochromocytoma). It is more common in women than in men. (Stedman, 25th ed; from Segen, Dictionary of Modern Medicine, 1992)
A large group of diseases which are characterized by a low prevalence in the population. They frequently are associated with problems in diagnosis and treatment.
A malignant kidney tumor, caused by the uncontrolled multiplication of renal stem (blastemal), stromal (STROMAL CELLS), and epithelial (EPITHELIAL CELLS) elements. However, not all three are present in every case. Several genes or chromosomal areas have been associated with Wilms tumor which is usually found in childhood as a firm lump in a child's side or ABDOMEN.
A malignant tumor arising from the embryonic remains of the notochord. It is also called chordocarcinoma, chordoepithelioma, and notochordoma. (Dorland, 27th ed)
A system of organs and tissues that process and transport immune cells and LYMPH.
Neoplasms of the intracranial components of the central nervous system, including the cerebral hemispheres, basal ganglia, hypothalamus, thalamus, brain stem, and cerebellum. Brain neoplasms are subdivided into primary (originating from brain tissue) and secondary (i.e., metastatic) forms. Primary neoplasms are subdivided into benign and malignant forms. In general, brain tumors may also be classified by age of onset, histologic type, or presenting location in the brain.
A malignant neoplasm that contains elements of carcinoma and sarcoma so extensively intermixed as to indicate neoplasia of epithelial and mesenchymal tissue. (Stedman, 25th ed)
Histochemical localization of immunoreactive substances using labeled antibodies as reagents.
INFLAMMATION of the underlying layer of ADIPOSE TISSUE (panniculus) of the PERITONEUM, usually of the MESENTERY or the OMENTUM. There are several forms with various names and are usually characterized by infiltration of LYMPHOCYTES and NEUTROPHILS, fat NECROSIS, and FIBROSIS.
Rare indolent tumors comprised of neoplastic glial and neuronal cells which occur primarily in children and young adults. Benign lesions tend to be associated with long survival unless the tumor degenerates into a histologically malignant form. They tend to occur in the optic nerve and white matter of the brain and spinal cord.
Experimentally induced new abnormal growth of TISSUES in animals to provide models for studying human neoplasms.
Genes that inhibit expression of the tumorigenic phenotype. They are normally involved in holding cellular growth in check. When tumor suppressor genes are inactivated or lost, a barrier to normal proliferation is removed and unregulated growth is possible.
Malignant neoplasms arising in the neuroectoderm, the portion of the ectoderm of the early embryo that gives rise to the central and peripheral nervous systems, including some glial cells.
Rare neoplasms of mesenchymal origin, usually benign, and most commonly involving the PLEURA (see SOLITARY FIBROUS TUMOR, PLEURAL). They also are found in extrapleural sites.
A rare malignant neoplasm characterized by rapidly proliferating, extensively infiltrating, anaplastic cells derived from blood vessels and lining irregular blood-filled or lumpy spaces. (Stedman, 25th ed)
The circulation of the BLOOD through the MICROVASCULAR NETWORK.
Neoplasms composed of more than one type of neoplastic tissue.
Nuclear phosphoprotein encoded by the p53 gene (GENES, P53) whose normal function is to control CELL PROLIFERATION and APOPTOSIS. A mutant or absent p53 protein has been found in LEUKEMIA; OSTEOSARCOMA; LUNG CANCER; and COLORECTAL CANCER.
A neoplasm that arises from SCHWANN CELLS of the cranial, peripheral, and autonomic nerves. Clinically, these tumors may present as a cranial neuropathy, abdominal or soft tissue mass, intracranial lesion, or with spinal cord compression. Histologically, these tumors are encapsulated, highly vascular, and composed of a homogenous pattern of biphasic fusiform-shaped cells that may have a palisaded appearance. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp964-5)
A malignant tumor composed of more than one type of neoplastic tissue. (Dorland, 27th ed)
The property of blood capillary ENDOTHELIUM that allows for the selective exchange of substances between the blood and surrounding tissues and through membranous barriers such as the BLOOD-AIR BARRIER; BLOOD-AQUEOUS BARRIER; BLOOD-BRAIN BARRIER; BLOOD-NERVE BARRIER; BLOOD-RETINAL BARRIER; and BLOOD-TESTIS BARRIER. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (TIGHT JUNCTIONS) which may limit large molecule movement.
Death resulting from the presence of a disease in an individual, as shown by a single case report or a limited number of patients. This should be differentiated from DEATH, the physiological cessation of life and from MORTALITY, an epidemiological or statistical concept.
Two or more abnormal growths of tissue occurring simultaneously and presumed to be of separate origin. The neoplasms may be histologically the same or different, and may be found in the same or different sites.
Neoplasms located in the vasculature system, such as ARTERIES and VEINS. They are differentiated from neoplasms of vascular tissue (NEOPLASMS, VASCULAR TISSUE), such as ANGIOFIBROMA or HEMANGIOMA.
Tumors whose cells possess secretory granules and originate from the neuroectoderm, i.e., the cells of the ectoblast or epiblast that program the neuroendocrine system. Common properties across most neuroendocrine tumors include ectopic hormone production (often via APUD CELLS), the presence of tumor-associated antigens, and isozyme composition.
Tumors or cancers of the KIDNEY.
A mixed mesenchymal tumor composed of two or more mesodermal cellular elements not commonly associated, not counting fibrous tissue as one of the elements. Mesenchymomas are widely distributed in the body and about 75% are malignant. (Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1866)
Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.
Proteins that are normally involved in holding cellular growth in check. Deficiencies or abnormalities in these proteins may lead to unregulated cell growth and tumor development.
A connective tissue neoplasm formed by proliferation of mesodermal cells; it is usually highly malignant.
Tumors or cancer of the PARANASAL SINUSES.
Tumors or cancer of any part of the hearing and equilibrium system of the body (the EXTERNAL EAR, the MIDDLE EAR, and the INNER EAR).
Tumors or cancer of the NOSE.
All tumors in the GASTROINTESTINAL TRACT arising from mesenchymal cells (MESODERM) except those of smooth muscle cells (LEIOMYOMA) or Schwann cells (SCHWANNOMA).
The milieu surrounding neoplasms consisting of cells, vessels, soluble factors, and molecules, that can influence and be influenced by, the neoplasm's growth.
The transfer of a neoplasm from one organ or part of the body to another remote from the primary site.
A focal malformation resembling a neoplasm, composed of an overgrowth of mature cells and tissues that normally occur in the affected area.
Tumors or cancer of the LIVER.
Tumors or cancer of the PANCREAS. Depending on the types of ISLET CELLS present in the tumors, various hormones can be secreted: GLUCAGON from PANCREATIC ALPHA CELLS; INSULIN from PANCREATIC BETA CELLS; and SOMATOSTATIN from the SOMATOSTATIN-SECRETING CELLS. Most are malignant except the insulin-producing tumors (INSULINOMA).
A malignant epithelial tumor with a glandular organization.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
Experimentally induced mammary neoplasms in animals to provide a model for studying human BREAST NEOPLASMS.
Benign and malignant neoplasms which occur within the substance of the spinal cord (intramedullary neoplasms) or in the space between the dura and spinal cord (intradural extramedullary neoplasms). The majority of intramedullary spinal tumors are primary CNS neoplasms including ASTROCYTOMA; EPENDYMOMA; and LIPOMA. Intramedullary neoplasms are often associated with SYRINGOMYELIA. The most frequent histologic types of intradural-extramedullary tumors are MENINGIOMA and NEUROFIBROMA.
A group of malignant tumors of the nervous system that feature primitive cells with elements of neuronal and/or glial differentiation. Use of this term is limited by some authors to central nervous system tumors and others include neoplasms of similar origin which arise extracranially (i.e., NEUROECTODERMAL TUMORS, PRIMITIVE, PERIPHERAL). This term is also occasionally used as a synonym for MEDULLOBLASTOMA. In general, these tumors arise in the first decade of life and tend to be highly malignant. (From DeVita et al., Cancer: Principles and Practice of Oncology, 5th ed, p2059)
A usually benign tumor composed of cells which arise from chondroblasts or their precursors and which tend to differentiate into cartilage cells. It occurs primarily in the epiphyses of adolescents. It is relatively rare and represents less than 2% of all primary bone tumors. The peak incidence is in the second decade of life; it is about twice as common in males as in females. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p1846)
Rare, slow-growing, benign intraventricular tumors, often asymptomatic and discovered incidentally. The tumors are classified histologically as ependymomas and demonstrate a proliferation of subependymal fibrillary astrocytes among the ependymal tumor cells. (From Clin Neurol Neurosurg 1997 Feb;99(1):17-22)
A sarcoma derived from deep fibrous tissue, characterized by bundles of immature proliferating fibroblasts with variable collagen formation, which tends to invade locally and metastasize by the bloodstream. (Stedman, 25th ed)
The minute vessels that connect the arterioles and venules.
Tumors or cancer of the PAROTID GLAND.
Pathological processes involving the PERITONEUM.
Neoplasms of whatever cell type or origin, occurring in the extraskeletal connective tissue framework of the body including the organs of locomotion and their various component structures, such as nerves, blood vessels, lymphatics, etc.
Elements of limited time intervals, contributing to particular results or situations.
A malignant neoplasm of the ADRENAL CORTEX. Adrenocortical carcinomas are unencapsulated anaplastic (ANAPLASIA) masses sometimes exceeding 20 cm or 200 g. They are more likely to be functional than nonfunctional, and produce ADRENAL CORTEX HORMONES that may result in hypercortisolism (CUSHING SYNDROME); HYPERALDOSTERONISM; and/or VIRILISM.
An adenoma of the large intestine. It is usually a solitary, sessile, often large, tumor of colonic mucosa composed of mucinous epithelium covering delicate vascular projections. Hypersecretion and malignant changes occur frequently. (Stedman, 25th ed)
A pathologic process consisting of the proliferation of blood vessels in abnormal tissues or in abnormal positions.
A type of connective tissue neoplasm typically arising from intralobular stroma of the breast. It is characterized by the rapid enlargement of an asymmetric firm mobile mass. Histologically, its leaf-like stromal clefts are lined by EPITHELIAL CELLS. Rare phyllodes tumor of the prostate is also known.
Tumors of bone tissue or synovial or other soft tissue characterized by the presence of giant cells. The most common are giant cell tumor of tendon sheath and GIANT CELL TUMOR OF BONE.
Tumor or cancer of the MALE GENITALIA.
The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used.
A malignant olfactory neuroblastoma arising from the olfactory epithelium of the superior nasal cavity and cribriform plate. It is uncommon (3% of nasal tumors) and rarely is associated with the production of excess hormones (e.g., SIADH, Cushing Syndrome). It has a high propensity for multiple local recurrences and bony metastases. (From Holland et al., Cancer Medicine, 3rd ed, p1245; J Laryngol Otol 1998 Jul;112(7):628-33)
Tumors or cancer located in bone tissue or specific BONES.
White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES).
A rare aggressive variant of chondrosarcoma, characterized by a biphasic histologic pattern of small compact cells intermixed with islands of cartilaginous matrix. Mesenchymal chondrosarcomas have a predilection for flat bones; long tubular bones are rarely affected. They tend to occur in the younger age group and are highly metastatic. (DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1456)
A group of carcinomas which share a characteristic morphology, often being composed of clusters and trabecular sheets of round "blue cells", granular chromatin, and an attenuated rim of poorly demarcated cytoplasm. Neuroendocrine tumors include carcinoids, small ("oat") cell carcinomas, medullary carcinoma of the thyroid, Merkel cell tumor, cutaneous neuroendocrine carcinoma, pancreatic islet cell tumors, and pheochromocytoma. Neurosecretory granules are found within the tumor cells. (Segen, Dictionary of Modern Medicine, 1992)
Methods which attempt to express in replicable terms the extent of the neoplasm in the patient.
Monohydroxyethyl derivative of rutin. Peripheral circulation stimulant used in treatment of venous disorders.
The local recurrence of a neoplasm following treatment. It arises from microscopic cells of the original neoplasm that have escaped therapeutic intervention and later become clinically visible at the original site.
Neoplasms of the bony part of the skull.
A segment of the COLON between the RECTUM and the descending colon.
Transplantation between animals of different species.
A benign tumor of fibrous or fully developed connective tissue.
Tumors or cancer of the SKIN.
A tumor of medium-to-large veins, composed of plump-to-spindled endothelial cells that bulge into vascular spaces in a tombstone-like fashion. These tumors are thought to have "borderline" aggression, where one-third develop local recurrences, but only rarely metastasize. It is unclear whether the epithelioid hemangioendothelioma is truly neoplastic or an exuberant tissue reaction, nor is it clear if this is equivalent to Kimura's disease (see ANGIOLYMPHOID HYPERPLASIA WITH EOSINOPHILIA). (Segen, Dictionary of Modern Medicine, 1992)
Tumors or cancers of the ADRENAL CORTEX.
A double-layered fold of peritoneum that attaches the STOMACH to other organs in the ABDOMINAL CAVITY.
Tumors or cancer of the OVARY. These neoplasms can be benign or malignant. They are classified according to the tissue of origin, such as the surface EPITHELIUM, the stromal endocrine cells, and the totipotent GERM CELLS.
In vivo methods of screening investigative anticancer drugs, biologic response modifiers or radiotherapies. Human tumor tissue or cells are transplanted into mice or rats followed by tumor treatment regimens. A variety of outcomes are monitored to assess antitumor effectiveness.
All of the processes involved in increasing CELL NUMBER including CELL DIVISION.
Adherence of cells to surfaces or to other cells.
A benign tumor composed, wholly or in part, of cells with the morphologic characteristics of HISTIOCYTES and with various fibroblastic components. Fibrous histiocytomas can occur anywhere in the body. When they occur in the skin, they are called dermatofibromas or sclerosing hemangiomas. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 5th ed, p1747)
Tumors or cancer in the JEJUNUM region of the small intestine (INTESTINE, SMALL).
Tumors or cancer of the DUODENUM.
A tumor consisting of displaced ectodermal structures along the lines of embryonic fusion, the wall being formed of epithelium-lined connective tissue, including skin appendages, and containing keratin, sebum, and hair. (Stedman, 25th ed)
Proteins, glycoprotein, or lipoprotein moieties on surfaces of tumor cells that are usually identified by monoclonal antibodies. Many of these are of either embryonic or viral origin.
A relatively large mass of unusually firm scarlike connective tissue resulting from active participation of fibroblasts, occurring most frequently in the abdominal muscles of women who have borne children. The fibroblasts infiltrate surrounding muscle and fascia. (Stedman, 25th ed)
The movement of cells from one location to another. Distinguish from CYTOKINESIS which is the process of dividing the CYTOPLASM of a cell.
A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.
A potent mast cell degranulator. It is involved in histamine release.
Single pavement layer of cells which line the luminal surface of the entire vascular system and regulate the transport of macromolecules and blood components.
Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.
Passage of light through body tissues or cavities for examination of internal structures.
Tumors in any part of the heart. They include primary cardiac tumors and metastatic tumors to the heart. Their interference with normal cardiac functions can cause a wide variety of symptoms including HEART FAILURE; CARDIAC ARRHYTHMIAS; or EMBOLISM.
A species of the family Ranidae occurring in a wide variety of habitats from within the Arctic Circle to South Africa, Australia, etc.
A malignant tumor derived from primitive or embryonal lipoblastic cells. It may be composed of well-differentiated fat cells or may be dedifferentiated: myxoid (LIPOSARCOMA, MYXOID), round-celled, or pleomorphic, usually in association with a rich network of capillaries. Recurrences are common and dedifferentiated liposarcomas metastasize to the lungs or serosal surfaces. (From Dorland, 27th ed; Stedman, 25th ed)
A benign, painful, tumor of bone characterized by the formation of osteoid tissue, primitive bone and calcified tissue. It occurs frequently in the spine of young persons. (From Dorland, 27th ed; Stedman, 25th ed)
Removal and pathologic examination of specimens in the form of small pieces of tissue from the living body.
New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms.
Proteins whose abnormal expression (gain or loss) are associated with the development, growth, or progression of NEOPLASMS. Some neoplasm proteins are tumor antigens (ANTIGENS, NEOPLASM), i.e. they induce an immune reaction to their tumor. Many neoplasm proteins have been characterized and are used as tumor markers (BIOMARKERS, TUMOR) when they are detectable in cells and body fluids as monitors for the presence or growth of tumors. Abnormal expression of ONCOGENE PROTEINS is involved in neoplastic transformation, whereas the loss of expression of TUMOR SUPPRESSOR PROTEINS is involved with the loss of growth control and progression of the neoplasm.
Tumors or cancer of the COLON.
Neoplasms of the base of the skull specifically, differentiated from neoplasms of unspecified sites or bones of the skull (SKULL NEOPLASMS).
Tumors or cancer of the SALIVARY GLANDS.
The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION.
A transplantable, poorly differentiated malignant tumor which appeared originally as a spontaneous breast carcinoma in a mouse. It grows in both solid and ascitic forms.
A malignant cystic or semisolid tumor most often occurring in the ovary. Rarely, one is solid. This tumor may develop from a mucinous cystadenoma, or it may be malignant at the onset. The cysts are lined with tall columnar epithelial cells; in others, the epithelium consists of many layers of cells that have lost normal structure entirely. In the more undifferentiated tumors, one may see sheets and nests of tumor cells that have very little resemblance to the parent structure. (Hughes, Obstetric-Gynecologic Terminology, 1972, p184)
An alpha-1 adrenergic agonist that causes prolonged peripheral VASOCONSTRICTION.
A true neoplasm composed of a number of different types of tissue, none of which is native to the area in which it occurs. It is composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm. They are classified histologically as mature (benign) or immature (malignant). (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1642)
Neoplasms composed of muscle tissue: skeletal, cardiac, or smooth. The concept does not refer to neoplasms located in muscles.
Bleeding from the nose.
Primary or metastatic neoplasms of the CEREBELLUM. Tumors in this location frequently present with ATAXIA or signs of INTRACRANIAL HYPERTENSION due to obstruction of the fourth ventricle. Common primary cerebellar tumors include fibrillary ASTROCYTOMA and cerebellar HEMANGIOBLASTOMA. The cerebellum is a relatively common site for tumor metastases from the lung, breast, and other distant organs. (From Okazaki & Scheithauer, Atlas of Neuropathology, 1988, p86 and p141)
Inflammation of the COLON due to colonic ISCHEMIA resulting from alterations in systemic circulation or local vasculature.
Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.
Tumors or cancer of the GASTROINTESTINAL TRACT, from the MOUTH to the ANAL CANAL.
Neoplasms of the bony orbit and contents except the eyeball.
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.
A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company.
A malignant solid tumor arising from mesenchymal tissues which normally differentiate to form striated muscle. It can occur in a wide variety of sites. It is divided into four distinct types: pleomorphic, predominantly in male adults; alveolar (RHABDOMYOSARCOMA, ALVEOLAR), mainly in adolescents and young adults; embryonal (RHABDOMYOSARCOMA, EMBRYONAL), predominantly in infants and children; and botryoidal, also in young children. It is one of the most frequently occurring soft tissue sarcomas and the most common in children under 15. (From Dorland, 27th ed; Holland et al., Cancer Medicine, 3d ed, p2186; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, pp1647-9)
RNA sequences that serve as templates for protein synthesis. Bacterial mRNAs are generally primary transcripts in that they do not require post-transcriptional processing. Eukaryotic mRNA is synthesized in the nucleus and must be exported to the cytoplasm for translation. Most eukaryotic mRNAs have a sequence of polyadenylic acid at the 3' end, referred to as the poly(A) tail. The function of this tail is not known for certain, but it may play a role in the export of mature mRNA from the nucleus as well as in helping stabilize some mRNA molecules by retarding their degradation in the cytoplasm.
A tumor derived from mesothelial tissue (peritoneum, pleura, pericardium). It appears as broad sheets of cells, with some regions containing spindle-shaped, sarcoma-like cells and other regions showing adenomatous patterns. Pleural mesotheliomas have been linked to exposure to asbestos. (Dorland, 27th ed)
Tumors or cancer of the TESTIS. Germ cell tumors (GERMINOMA) of the testis constitute 95% of all testicular neoplasms.
Any impairment, arrest, or reversal of the normal flow of INTESTINAL CONTENTS toward the ANAL CANAL.
Tumors or cancer of the INTESTINES.
A benign brain tumor composed of neural elements which most often arise from the SEPTUM PELLUCIDUM and the walls of the lateral ventricles. Immunohistochemistry and electron microscopy evaluations may reveal expression of neuron specific enolase and synaptophysin and cells containing microtubuli, neurosecretory granules, and presynaptic vesicles. (From Acta Med Port 1994 Feb;7(2):113-9)
A sarcoma originating in bone-forming cells, affecting the ends of long bones. It is the most common and most malignant of sarcomas of the bones, and occurs chiefly among 10- to 25-year-old youths. (From Stedman, 25th ed)
The carbohydrate-rich zone on the cell surface. This zone can be visualized by a variety of stains as well as by its affinity for lectins. Although most of the carbohydrate is attached to intrinsic plasma membrane molecules, the glycocalyx usually also contains both glycoproteins and proteoglycans that have been secreted into the extracellular space and then adsorbed onto the cell surface. (Alberts et al., Molecular Biology of the Cell, 3d ed, p502)
Benign and malignant central nervous system neoplasms derived from glial cells (i.e., astrocytes, oligodendrocytes, and ependymocytes). Astrocytes may give rise to astrocytomas (ASTROCYTOMA) or glioblastoma multiforme (see GLIOBLASTOMA). Oligodendrocytes give rise to oligodendrogliomas (OLIGODENDROGLIOMA) and ependymocytes may undergo transformation to become EPENDYMOMA; CHOROID PLEXUS NEOPLASMS; or colloid cysts of the third ventricle. (From Escourolle et al., Manual of Basic Neuropathology, 2nd ed, p21)
Neoplasms of the thin serous membrane that envelopes the lungs and lines the thoracic cavity. Pleural neoplasms are exceedingly rare and are usually not diagnosed until they are advanced because in the early stages they produce no symptoms.
Neoplasms located in the brain ventricles, including the two lateral, the third, and the fourth ventricle. Ventricular tumors may be primary (e.g., CHOROID PLEXUS NEOPLASMS and GLIOMA, SUBEPENDYMAL), metastasize from distant organs, or occur as extensions of locally invasive tumors from adjacent brain structures.
Microscopy in which television cameras are used to brighten magnified images that are otherwise too dark to be seen with the naked eye. It is used frequently in TELEPATHOLOGY.
Malignant neoplasms composed of MACROPHAGES or DENDRITIC CELLS. Most histiocytic sarcomas present as localized tumor masses without a leukemic phase. Though the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid.
A dull red, firm, dome-shaped hemangioma, sharply demarcated from surrounding skin, usually located on the head and neck, which grows rapidly and generally undergoes regression and involution without scarring. It is caused by proliferation of immature capillary vessels in active stroma, and is usually present at birth or occurs within the first two or three months of life. (Dorland, 27th ed)
DNA present in neoplastic tissue.
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Tumors or cancer of the THYMUS GLAND.
Carcinoma characterized by bands or cylinders of hyalinized or mucinous stroma separating or surrounded by nests or cords of small epithelial cells. When the cylinders occur within masses of epithelial cells, they give the tissue a perforated, sievelike, or cribriform appearance. Such tumors occur in the mammary glands, the mucous glands of the upper and lower respiratory tract, and the salivary glands. They are malignant but slow-growing, and tend to spread locally via the nerves. (Dorland, 27th ed)
Mice homozygous for the mutant autosomal recessive gene "scid" which is located on the centromeric end of chromosome 16. These mice lack mature, functional lymphocytes and are thus highly susceptible to lethal opportunistic infections if not chronically treated with antibiotics. The lack of B- and T-cell immunity resembles severe combined immunodeficiency (SCID) syndrome in human infants. SCID mice are useful as animal models since they are receptive to implantation of a human immune system producing SCID-human (SCID-hu) hematochimeric mice.
Small bodies containing chromaffin cells occurring outside of the adrenal medulla, most commonly near the sympathetic ganglia and in organs such as the kidney, liver, heart and gonads.
A benign tumor containing vascular, adipose, and muscle elements. It occurs most often in the kidney with smooth muscle elements (angiolipoleiomyoma) in association with tuberous sclerosis. (Dorland, 27th ed)
Experimentally induced neoplasms of CONNECTIVE TISSUE in animals to provide a model for studying human SARCOMA.
A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.
The smallest divisions of the arteries located between the muscular arteries and the capillaries.
The relationship between the dose of an administered drug and the response of the organism to the drug.
Tubular vessels that are involved in the transport of LYMPH and LYMPHOCYTES.
A derivative of the insecticide DICHLORODIPHENYLDICHLOROETHANE that specifically inhibits cells of the adrenal cortex and their production of hormones. It is used to treat adrenocortical tumors and causes CNS damage, but no bone marrow depression.
A slowly growing malignant neoplasm derived from cartilage cells, occurring most frequently in pelvic bones or near the ends of long bones, in middle-aged and old people. Most chondrosarcomas arise de novo, but some may develop in a preexisting benign cartilaginous lesion or in patients with ENCHONDROMATOSIS. (Stedman, 25th ed)
The intracellular transfer of information (biological activation/inhibition) through a signal pathway. In each signal transduction system, an activation/inhibition signal from a biologically active molecule (hormone, neurotransmitter) is mediated via the coupling of a receptor/enzyme to a second messenger system or to an ion channel. Signal transduction plays an important role in activating cellular functions, cell differentiation, and cell proliferation. Examples of signal transduction systems are the GAMMA-AMINOBUTYRIC ACID-postsynaptic receptor-calcium ion channel system, the receptor-mediated T-cell activation pathway, and the receptor-mediated activation of phospholipases. Those coupled to membrane depolarization or intracellular release of calcium include the receptor-mediated activation of cytotoxic functions in granulocytes and the synaptic potentiation of protein kinase activation. Some signal transduction pathways may be part of larger signal transduction pathways; for example, protein kinase activation is part of the platelet activation signal pathway.
Tumors or cancer of the SIGMOID COLON.
Tumors or cancer of the human BREAST.
Tumors or cancer of the MANDIBLE.
A variation of the PCR technique in which cDNA is made from RNA via reverse transcription. The resultant cDNA is then amplified using standard PCR protocols.
A rare but highly lethal childhood tumor found almost exclusively in infants. Histopathologically, it resembles RHABDOMYOSARCOMA but the tumor cells are not of myogenic origin. Although it arises primarily in the kidney, it may be found in other parts of the body. The rhabdoid cytomorphology is believed to be the expression of a very primitive malignant cell. (From Holland et al., Cancer Medicine, 3d ed, p2210)
Experimentally induced tumor that produces MELANIN in animals to provide a model for studying human MELANOMA.
The portion of the GASTROINTESTINAL TRACT between the PYLORUS of the STOMACH and the ILEOCECAL VALVE of the LARGE INTESTINE. It is divisible into three portions: the DUODENUM, the JEJUNUM, and the ILEUM.
A multilocular tumor with mucin secreting epithelium. They are most often found in the ovary, but are also found in the pancreas, appendix, and rarely, retroperitoneal and in the urinary bladder. They are considered to have low-grade malignant potential.
Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.
A tumor of both low- and high-grade malignancy. The low-grade grow slowly, appear in any age group, and are readily cured by excision. The high-grade behave aggressively, widely infiltrate the salivary gland and produce lymph node and distant metastases. Mucoepidermoid carcinomas account for about 21% of the malignant tumors of the parotid gland and 10% of the sublingual gland. They are the most common malignant tumor of the parotid. (From DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p575; Holland et al., Cancer Medicine, 3d ed, p1240)
Tumors or cancer of the LUNG.
A neoplasm originating from thymic tissue, usually benign, and frequently encapsulated. Although it is occasionally invasive, metastases are extremely rare. It consists of any type of thymic epithelial cell as well as lymphocytes that are usually abundant. Malignant lymphomas that involve the thymus, e.g., lymphosarcoma, Hodgkin's disease (previously termed granulomatous thymoma), should not be regarded as thymoma. (From Stedman, 25th ed)
Soft tissue tumors or cancer arising from the mucosal surfaces of the LIP; oral cavity; PHARYNX; LARYNX; and cervical esophagus. Other sites included are the NOSE and PARANASAL SINUSES; SALIVARY GLANDS; THYROID GLAND and PARATHYROID GLANDS; and MELANOMA and non-melanoma skin cancers of the head and neck. (from Holland et al., Cancer Medicine, 4th ed, p1651)
A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed)
A neoplasm composed entirely of GRANULOSA CELLS, occurring mostly in the OVARY. In the adult form, it may contain some THECA CELLS. This tumor often produces ESTRADIOL and INHIBIN. The excess estrogen exposure can lead to other malignancies in women and PRECOCIOUS PUBERTY in girls. In rare cases, granulosa cell tumors have been identified in the TESTES.
Tumors or cancer of the MEDIASTINUM.
Antibodies produced by a single clone of cells.
A cutaneous pouch of skin containing the testicles and spermatic cords.
A usually benign, well-encapsulated, lobular, vascular tumor of chromaffin tissue of the ADRENAL MEDULLA or sympathetic paraganglia. The cardinal symptom, reflecting the increased secretion of EPINEPHRINE and NOREPINEPHRINE, is HYPERTENSION, which may be persistent or intermittent. During severe attacks, there may be HEADACHE; SWEATING, palpitation, apprehension, TREMOR; PALLOR or FLUSHING of the face, NAUSEA and VOMITING, pain in the CHEST and ABDOMEN, and paresthesias of the extremities. The incidence of malignancy is as low as 5% but the pathologic distinction between benign and malignant pheochromocytomas is not clear. (Dorland, 27th ed; DeVita Jr et al., Cancer: Principles & Practice of Oncology, 3d ed, p1298)
The worsening of a disease over time. This concept is most often used for chronic and incurable diseases where the stage of the disease is an important determinant of therapy and prognosis.
Tumors or cancer of the NASOPHARYNX.
The finer blood vessels of the vasculature that are generally less than 100 microns in internal diameter.
Unbroken cellular lining (intima) of the lymph vessels (e.g., the high endothelial lymphatic venules). It is more permeable than vascular endothelium, lacking selective absorption and functioning mainly to remove plasma proteins that have filtered through the capillaries into the tissue spaces.
An imaging technique using compounds labelled with short-lived positron-emitting radionuclides (such as carbon-11, nitrogen-13, oxygen-15 and fluorine-18) to measure cell metabolism. It has been useful in study of soft tissues such as CANCER; CARDIOVASCULAR SYSTEM; and brain. SINGLE-PHOTON EMISSION-COMPUTED TOMOGRAPHY is closely related to positron emission tomography, but uses isotopes with longer half-lives and resolution is lower.
A benign neoplasm derived from connective tissue, consisting chiefly of polyhedral and stellate cells that are loosely embedded in a soft mucoid matrix, thereby resembling primitive mesenchymal tissue. It occurs frequently intramuscularly where it may be mistaken for a sarcoma. It appears also in the jaws and the skin. (From Stedman, 25th ed)
Pathological development in the JEJUNUM region of the SMALL INTESTINE.
Mutant mice homozygous for the recessive gene "nude" which fail to develop a thymus. They are useful in tumor studies and studies on immune responses.
A benign tumor resulting from a congenital malformation of the lymphatic system. Lymphangioendothelioma is a type of lymphangioma in which endothelial cells are the dominant component.
Established cell cultures that have the potential to propagate indefinitely.
The use of two or more chemicals simultaneously or sequentially in the drug therapy of neoplasms. The drugs need not be in the same dosage form.
Tumour localization may be extremely difficult.[citation needed] Barium swallow and follow-up examination of the intestine may ... Usually, on a CT scan, a spider-like/crab-like change is visible in the mesentery due to the fibrosis from the release of ... National Organization for Rare Disorders). Retrieved 8 May 2019. Cote, Etienne (2010). Clinical Veterinary Advisor - E-Book: An ... The biology of these tumors differs from many other tumor types. Ongoing research on the biology of these tumors may reveal new ...
Ulcerative colitis: Rare wcases of ITCLD-GT appear to have been diagnosed as ulcerative colitis. Awareness of ITCLD-GT and the ... Notably, the afflicted T cells have an extremely low rate of proliferation as determined by examining their KI-67 protein using ... tumor-like masses and deep ulcers. These lesions may be localized, occur in multiple sites, or extend throughout the GI tract; ... lymph nodes attached to the intestinal mesentery) and may show evidence of liver, spleen, and/or other organ involvement in ...
The epidemiology of Idiopathic sclerosing mesenteritis disease is extremely rare and has only been diagnosed in about an ... Examination of the mesentery may indicate a solitary mass, but diffuse mesentery thickening is common. It often mimics other ... Fletcher, Christopher D. M. (2007-03-29). Diagnostic Histopathology of Tumors: 2-Volume Set with CD-ROMs. Elsevier Health ... "Misty mesentery" is often used to describe increase in mesenteric fat density in sclerosing mesenteritis. However, it is not ...
... such as intraabdominal tumors that have not yet metastasized, extensive venous thrombosis or arterial ischemia of the mesentery ... Natural SBS is mercifully rare, estimated to be 3 per 100,000 births. Surgical removal is the most common cause, performed as a ... these viruses can wreak havoc on the body and become extremely dangerous, even fatal. Even with healthy physiological levels, ... The rarest type of organ transplantation performed, intestine transplantation is becoming increasingly prevalent as a ...
A diagnosis of BOT in stages II and III is rare, and exceptional in stage IV. Most of the BOTs, like carcinomas, are serous ... mesentery, pelvic, and abdominal peritoneum), although this practice is in disuse due to its low sensitivity and the apparent ... or on those patients who are extremely young, such that a loss of a large mass of ovarian tissue might negatively affect their ... A borderline tumor, sometimes called low malignant potential (LMP) tumor, is a distinct but yet heterogeneous group of tumors ...
In rare instances, enteroliths may be palpated on rectal examination, usually if they are present in the small colon. Once a ... The mesentery is a thin sheet attached to the entire length of intestine, enclosing blood vessels, lymph nodes, and nerves. ... It may also be pyretic, act depressed, or become extremely painful. Gas distention usually produces mild clinical signs, but in ... abdominal tumors, and inguinal or scrotal hernias. Abdominal ultrasound requires an experienced operator to accurately diagnose ...
... tumor is a rare cancer that can affect people at all ages. As of 2018, germ cell tumors account for 3% of all cancers ... Migration then takes place from the hindgut along the gut and across the dorsal mesentery to reach the gonads (4.5 weeks in ... Receptors belonging to the taste 2 family are specialized to detect bitter compounds including extremely toxic alkaloids. So ... Germ cell tumors are generally located in the gonads but can also appear in the abdomen, pelvis, mediastinum, or brain. Germ ...
The mesentery is part of the peritoneum. Arteries, veins, lymph vessels and nerves travel within the mesentery. The small ... Adenocarcinoma Carcinoid Gastrointestinal stromal tumor (GIST) Lymphoma Sarcoma Leiomyoma Metastatic tumors, especially SCLC or ... In lampreys, the spiral valve is extremely small, possibly because their diet requires little digestion. Hagfish have no spiral ... while others are vanishingly rare. Small intestine obstruction or obstructive disorders Meconium ileus Paralytic ileus Volvulus ...
It is rare in men over 45 and in women under 20. When males are affected, they tend to be young and report significant bowel ... Rarely, a neoplasm (tumour) may form on the leading edge of the intussusceptum. In addition, patients are frequently elderly ... Prolapsed, incarcerated hemorrhoids are extremely painful, whereas as long as a rectal prolapse is not strangulated, it gives ... and downward displacement of the sigmoid and rectum long rectal mesentery a deep cul-de-sac levator diastasis a patulous, weak ...
... these are extremely rare except in critically ill patients with multiple risk factors. In rare cases, coma associated with ... These loops often result in discomfort due to stretching of the colon and its associated mesentery. Manoeuvres to "reduce" or ... Virtual colonoscopy does not allow therapeutic maneuvers such as polyp and tumour removal or biopsy, nor visualization of ... DVT) In rare cases, more serious cardiopulmonary events such as a heart attack, stroke, or even death may occur; ...
... these are extremely rare except in critically ill patients with multiple risk factors. In rare cases, coma associated with ... These loops often result in discomfort due to stretching of the colon and its associated mesentery. Manoeuvres to "reduce" or ... Virtual colonoscopy does not allow therapeutic maneuvers such as polyp and tumour removal or biopsy, nor visualization of ... On rare occasions, intracolonic explosion may occur.[35] A meticulous bowel preparation is the key to prevent this complication ...
In rare cases of ectopic pregnancy, there may be two fertilized eggs, one outside the uterus and the other inside. This is ... Saige came out doing extremely well because even though she had been implanted outside the womb, a rich blood supply from a ... This is generally bowel or mesentery, but other sites, such as the renal (kidney), liver or hepatic (liver) artery or even ... In contrast, a relatively low and unresolving level of serum hCG indicates the possibility of an hCG-secreting tumour. Other ...
... is a relatively rare tumor and can develop in almost any organ, but primary mesenteric NETs are extremely rare. In addition, ... A 66-year-old man was identified as having tumors in the rectum and the ileal mesentery by computed tomography (CT). He ... The NET (G1) of the ileal mesentery was low grade and had not expanded at follow-up. A CT scan performed 4 years after the ... We herein report a case of multiple liver metastases from synchronous double cancer of NET (G1) at the ileal mesentery and ...
Aggressive fibromatosis arising from the small bowel mesentery is extremely rare. It may occur in association with previous ... Aggressive fibromatosis arising from the small bowel mesentery is extremely rare. It may occur in association with previous ... Desmoid tumor of the small bowel and the mesentery.. *Silvana C Faria, Revathy B Iyer, Asif Rashid, Lee Ellis, Gary J Whitman ... Sporadic Desmoid Tumor of the Small Bowel Mesentery in a Male Patient : A Case Report and Literature Review. @inproceedings{ ...
BACKGROUND: Haemolymphangioma arising from the small bowel and its mesentery is extremely rare in the clinical setting. To date ... Conditions: Malignant Solid Tumors; Other Neoplasms Solid Tumors; Pediatric Solid Tumor; Refractory Solid Tumors; Solid Tumor. ... OBJECTIVE: Hepatic epithelioid hemangioendothelioma (HEH) is an extremely rare tumor, and no standard treatment has been ... CONCLUSIONS: Hepatic EHE is a rare form of primary liver tumor often misdiagnosed as a metastatic tumor. Because of its ...
... a case report ABSTRACT Multicentric giant cell tumors represent less than 1% of all giant cell tumors of bones.... ... Primary mesenteric carcinoid tumors are extremely rare {Karahan 2006}. Park et al. reported a case of a solitary 8 cm ... tumor in a 52 year old with a partially calcified lobulated mass in the mesentery with smaller nodes in adjacent mesentery also ... These tumors had typical radiological appearance and the diagnosis of giant cell tumor was confirmed on histopathology. She was ...
Cavernous lymphangioma is a rare mediastinal benign tumor. A 43-year-old woman presented with cough and dyspnea for 1 month. ... Abdominal lymphangioma is usually diagnosed within the first 2 years of life and is extremely rare in adults. The most common ... location of abdominal lymphangioma is the mesentery, but there are sporadic reports of its development in the gallbladder. A 66 ... A large soft tissue tumor composed of cavernous lymphatic spaces. This condition is rare.. ...
The primary extraovarian GCT is extremely rare tumor [3]. In the English literature only 10 cases have been reported to date [3 ... Tumor rupture with haemoperitoneum is a well-known complication of GCT. Extraovarian GCT is a rare tumor with only 10 cases ... Extraovarian granulosa cell tumor is a rare tumor with only ten cases reported in English literature [4]. Two cases were ... Granulosa cell tumors (GCT) are the malignant sex cord-stromal tumors of the ovary. They constitute 1-2% of all ovarian tumors ...
Regarding the management of such a case, we believe that spleno-adrenal fusion is an extremely rare anomaly and could not be ... An accessory spleen mimicking a nonfunctional adrenal tumor: a potential pitfall in the diagnosis of a left adrenal tumor. UIN ... During the fifth week of development, mesothelial cells between the root of the mesentery and the developing gonad at the level ... We believe that spleno-adrenal fusion is an extremely rare anomaly and could not be predicted a priori. In similar conditions ...
Mesenteric tumors are uncommon lesions that are generally considered inclusive of similar lesions of the omentum. These lesions ... Other benign neoplasms of the mesentery are exceedingly rare, but tumors of neural origin, hamartomas, [1] and stromal tumors ... Malignant primary mesenteric tumors are extremely uncommon, even compared with primary malignancies of the small bowel. ... Solid primary tumors of the mesentery are rare. Published reports have consisted of small numbers of cases, which makes it ...
Ampullary neuroendocrine tumor is extremely rare and only a few cases of neuroendocrine carcinoma of the minor papilla have ... Primary neuroendocrine carcinoma occurring in the mesentery is extremely rare. Surgical resection is the best treatment ... Diverse cases are described in other localizations of the human body, being extremely rare primary small cell tumor of the ... Large Cell Poorly Differentiated Neuroendocrine Carcinoma of the Maxilla: An extremely Rare Tumor. ...
Primary neuroendocrine carcinoma occurring in the mesentery is extremely rare. Surgical resection is the best treatment ... METHODS: Patients with potentially resectable hepatic tumors underwent surgical exploration. The relationship of the tumor with ... The mean surface area of the tumors was 24+/-17.5 (4-83) cm2. The number of median lymph nodes harvested per case was 12 (1-48 ... CONCLUSION: This appears to be the first report analyzing the impact of the size of the rectal tumor in LAPR. The data clearly ...
Inflammatory myofibroblastic tumors involving the stomach are extremely rare. The pathogenesis of inflammatory myofibroblastic ... They most commonly occur in the lungs, mesenteries, omentum, and retroperitoneum [1]. ... A Rare Duodenal Subepithelial Tumor: Duodenal Schwannoma 2018 November;51(6). Endoscopic Treatment of Subepithelial Tumors 2018 ... Inflammatory myofibroblastic tumors are rare mesenchymal tumors with an undetermined behavior that preferentially occur in ...
Extremely rare sites include breast and muscle tissue. Incidence of GIST [0007] Of all adult cancers, sarcomas represent about ... Other factors with poor prognosis include tumour rupture, high cellularity, tumour necrosis, presence of metastases or invasion ... The most common sites for metastasis are the liver and the abdominal membranes (peritoneum, mesentery, omentum). GISTs rarely ... 0136] 2. Kindblom, L. G., et al., Gastrointestinal pacemaker cell tumor (GIPACT): gastrointestinal stromal tumors show ...
Extremely rare sites include breast and muscle tissue. [0384] Incidence of GIST [0385] Of all adult cancers, sarcomas represent ... gastrointestinal stromal tumors, testicular cancers, glioblastomas, solid tumors and astrocytomas. [0315] tumor angiogenesis. [ ... 0383] The most common sites for metastasis are the liver and the abdominal membranes (peritoneum, mesentery, omentum). GISTs ... Mice were irradiated at J-1 (5Gy) Tumor cells (106) were subcutaneously grafted at Jo Tumor size were daily measured from J14 ...
Primary tumors arising from the mesentery are rare. Most primary lesions are mesenchymal in origin and are mostly benign (1). ... Definition of mesenteric MFH: Mesenteric MFHs are extremely rare and highly malignant neoplasms with early metastatic spread. ... Primary mesenteric tumors are rare and mostly benign tumors. Complete surgical excision is necessary for all tumors and follow- ... Introduction: It is rare for primary tumors to arise from the mesentery. Lymphangiomas appear as congenital malformations of ...
PNFs of the PH are extremely rare and even more technically challenging to resect given the location and close relationship ... Even if the tumor appears resectable on imaging, intraoperatively these tumors are found to be unresectable due to intrahepatic ... mesentery [25, 27, 28], retroperitoneum [29], and gastrointestinal (GI) tract [30]. The GI involvement occurs in 10-25% of ... PNFs occur as isolated tumors in sporadic cases compared to multiple tumors in those with NF-1. Patients with NF-1 are also at ...
IMT is extremely rare as a primary gallbladder tumour. Despite improved radiographical capabilities, differentiating the tumour ... Diagnosed mainly in the mesentery, omentum, retroperitoneum, pelvis and lungs, ... Cholecystoduodenal fistula secondary to gallbladder carcinoma (GBC) is extremely rare and develops when the tumor penetrates ... is extremely rare and its early stage diagnosis is difficult. Most reports of MMG describe metastatic tumors. We herein report ...
Inflammatory Myofibroblastic Tumor: That differential diagnosis radiologist need to keep in mind by: F. Estevez, M. V. ... of intrapulmonary tumors. Its highest prevalence occurs during the second decade of life, being extremely rare in people older ... being mesentery and omentum the most affected sites (43%). It is usually a single neoplasm, being multiple in only 5% of the ... for tumors confined to the lung and 25% for extrapulmonary tumor. Tumors larger than 3cm are usually associated with poorer ...
Treatment options for colorectal cancer depend on the stage of the tumor-that is, how far it has spread or how deeply it is ... Brachytherapy is used on rare occasions.. *Chemotherapy-Drugs are given intravenously or orally to kill cancer cells. Low doses ... Laparoscopic surgery or "keyhole" surgery-Small tube-like instruments and an extremely small camera are inserted into the ... called the mesentery. ... This can produce tumor shrinkage or prevent disease spread.. * ...
Introduction Mesenteric panniculitis of the sigmoid colon is a rare occurrence in surgical practice. The aim of this article is ... panniculitis of sigmoid is an extremely rare entity of unknown origin in which the normal architecture of the mesentery is ... Crane JT, Aquilar MJ, Grimes OF: Isolated Lipodystrophy, Form of Mesenteric Tumor. Am J Surg. 1955, 90: 169-10.1016/0002-9610( ... MP of sigmoid is extremely rare clinical entity. On gross examination, the alterations may be mistaken for a neoplastic ...
Vomiting is usually rare. If youre lucky, you might feel a "sausage-shaped mass" in the right quadrant during an attack, but ... As the upper part of the bowel enters into the lower part, it brings along the mesentery. This causes venous engorgement. Later ... Other causes include a Meckels diverticulum, polyp, HSP, tumors or FBs. Ileocolic intussusception are the most common (as was ... this is one of those diagnoses where history is extremely important. Usually the parents provide all the info. The story is ...
CONCLUSION: The cases of metastases to small bowel are extremely rare, and to our knowledge this is first case reported in ... The histopathological analysis reported the diagnosis of a high-grade mucoepidermoid tumour with small bowel and mesentery with ... and significantly delayed tumor growth from day 3 to 12 of treatment. In addition, tumor necrosis was significantly increased ( ... The tumor sizes were measured and monitored using calipers and bioluminescence. The GK-1 peptide in combination with anti-PD-L1 ...
A Rare Neoplasm in an Atypical Site. Report of Three Cases and Review of the Literature, Jaques Waisberg, Geo ... To detect smalltumors, the EUS can be extremely useful [11, 23].. A large variety of the ampullary NETs and their metastases ... CT and MRI can reveal metastases in the liver or mesentery [25], as occurred in the third case in the present series. Magnetic ... Carcinoid tumor of the duodenum: a rare tumor at an unusual site. Case series from a single institution. Arq Gastroenterol 2013 ...
We report an extremely rare case of isolated enteric cyst in the neck region which was diagnosed on the histopathological ... named sclerosing mesenteritis that present with different levels of inflammation and fibrosis of the small bowel mesentery. It ... Fibrosarcoma is a rare and malignant spindle cell tumor of mesenchymal origin that infrequently presents in the orbit. Evolving ... Sixth cranial nerve palsy is an extremely rare complication of an arachnoid cyst. A 4-year-old boy who presented with left ...
Gastrointestinal Stromal Tumor • Fat Necrosis • Primary Papillary Serous Carcinoma Rare but Important • Sarcoma of Mesentery or ... Desmoplastic Small Round Cell Tumor Extremely uncommon, highly aggressive malignancy that most often affects adolescent and ... 65 Carcinoid Tumor Axial CECT demonstrates a well-circumscribed mass in the central mesentery with a few internal punctate ... 68 Gastrointestinal Stromal Tumor Axial CECT demonstrates a huge mass occupying much of the omentum and mesentery. The mass ...
It is an extremely rare variant of malignant peritoneal mesothelioma. There is no record of multiple excision of malignant ... Similar operations were performed in March 2012 and August 2015 because of tumors in the small bowel mesentery and the segment ... of all stomach tumors. Preoperative diagnosis is often extremely difficult, and there are reports of malignancy. Treatments and ... A 63-year-old man was diagnosed with gastrointestinal stromal tumor(GIST)that was excised for the first time in June 2011. The ...
... adhering to the first jejunal loop and involving the mesentery. Surgical removal of the tumor along with a jejunal resection ... We report this case to permit the collection of a larger number of cases to improve understanding and management of this tumor ... that was contiguous with the mesentery and compressed the third part of the duodenum and jejunum. At laparotomy, a large mass ... was performed because the first jejunal loop was firmly attached to the tumor. Macroscopic examination showed a solid, whitish ...
Intra-thymic bronchogenic cysts are extremely rare tumors of the anterior mediastinum. It should be considered in differential ... Intra-thymic bronchogenic cysts are a rare entity but should be considered in the differential of all non-invasive thymic ... mesentery of the bowel, and the intramedullary part of the spine. They have also been reported to extend from the mediastinum ... Intra-thymic bronchogenic cyst an extremely rare tumor of anterior mediastinum in adults. *Shadi Hamouri. ORCID: orcid.org/0000 ...
Tumors were divided in risk classes using the classification proposed by Fletcher, based on tumor size and number of mitosis. ... The mean tumor size was 9.2 cm (1.2 - 30 cm): ,5 cm diameter in 14/25 cases (56%), 5-10 cm in 5/25 (20%) and ,10 cm in 6/25 (24 ... High-risk tumors had a significantly shorter survival than low or very low risk. Our experience confirms that GISTs are ... All patients data, tumor characteristics, surgical procedure and survival data were analyzed retrospectively. ...
Teratoma of the mesentery is an extremely rare tumour of the germ cells and imposes diagnostic dilemma in clinical practice and ... Tumors of the hematopoietic tissues, genitourinary organs, mammary glands and sarcomas. These effects are mediated, in part, ... We use this approach for all hearing preservation surgery as well as for tumors of more than 3 cm, regardless of hearing. ... with no evidence of tumor cell necrosis. : Recent changes in the radiotherapy (RT) workflow through the introduction of complex ...
  • Mesenteric tumors are uncommon lesions that are generally considered inclusive of similar lesions of the omentum. (medscape.com)
  • The lesser omentum is also technically a mesentery, and any consideration of tumors of these structures is generally inclusive of lesions of the greater omentum as well. (medscape.com)
  • The vast majority of reported mesenteric tumors originate in the small-bowel mesentery or omentum. (medscape.com)
  • Primary malignant mesenchymal or stromal tumors of the mesentery of the bowel (see the image below), as well as of the greater and lesser omentum, are a rare subset of abdominal cancers that resemble either retroperitoneal sarcomas or GI stromal tumors (GISTs) primary to the intestine. (medscape.com)
  • The computed tomography of the abdomen showed the presence of ascitic fluid, as well as a thickening of the greater omentum and the root of the mesentery. (geocities.ws)
  • in a 12 months inhalation study with rats, based on occasional occurrence of hemangiosarcoma in several tissues, including omentum, mesentery or subcutaneous tissue. (europa.eu)
  • The majority of reports of eGISTs seem to be from the omentum, mesentery and the pelvis/retroperitoneum. (liferaftgroup.org)
  • Torsion of the omentum is a rare cause of acute surgical abdomen. (readbyqxmd.com)
  • It is rarely located in extra-gastrointestinal sites, such as the omentum and mesentery. (spandidos-publications.com)
  • Cut section revealed solid homogenous grayish white tumor with small cystic areas and areas of haemorrhages (Figure 1 ). (hindawi.com)
  • Mesenteric tumors may be cystic or solid, and they may demonstrate malignant or benign clinical behavior. (medscape.com)
  • Most are lymphangiomas, but simple peritoneal cysts and enteric cysts are also found, as well as rare mesenteric mesotheliomas with prominent cystic components. (medscape.com)
  • Cystic mesotheliomas are rare, benign tumors that originate from the peritoneal mesothelium and are more common in women. (ircmj.com)
  • These cystic tumors are mostly benign lesions, but can be seen as occupying large cysts affecting other organs ( 3 ). (ircmj.com)
  • Intrathymic bronchogenic cyst is an extremely rare congenital cystic thymic pathology. (biomedcentral.com)
  • B) A cystic mass with linear calcification in the mesentery adjacent to the ascending colon is observed on computed tomography. (calcipotriol.net)
  • Rare Case of Pancreatic Cystic Lymphangioma. (pubfacts.com)
  • Pancreatic cystic lymphangioma is an extremely rare tumor. (pubfacts.com)
  • Systemic cystic angiomatosis is a rare benign disorder due to the maldeveloped vascular and lymphatic system with less than 50 cases reported in literature so far. (pubfacts.com)
  • The tumor was removed via resection of the small bowel, and the ex vivo dissection revealed a solid mass with ulceration located in the cystic sack ( Fig. 2 ). (medihelp.life)
  • The intraoperative findings revealed a large bulging cystic tumor arising from the retroperitoneal space posterolateral to the descending colon, inferior to the spleen and anterior to the left kidney and attached to the splenic flexure by a highly vascularized tissue band, giving the impression of a retroperitoneal sarcoma as shown in ( Figure 2 ). (panafrican-med-journal.com)
  • Preoperative imaging studies suggested that the tumor in the ileal mesentery could be a low-grade malignant lymphoma, a plasmacytoma, a Castleman disease, an IgG4-related disease, a desmoid tumor, a carcinoid tumor, or a gastrointestinal stromal tumor. (springer.com)
  • Mesenteric fibromatosis mimicking a gastrointestinal stromal tumor. (semanticscholar.org)
  • Granulosa cell tumors (GCT) are the most common malignant sex cord-stromal tumors of the ovary [ 1 ]. (hindawi.com)
  • [ 1 ] and stromal tumors of small size with nonaggressive clinical behavior have been described. (medscape.com)
  • Gastrointestinal stromal tumors (GIST) are infrequent and diagnosis and prognosis could be troublesome. (biomedcentral.com)
  • Gastrointestinal stromal tumors (GIST) are extremely unusual neoplasm accounting for less than 1% of all gastrointestinal tumors, arising from the Cajal's interstitial cells located in mesodermal tissue. (biomedcentral.com)
  • Context The discovery and subsequent ultrastructural characterization of the interstitial Cajal like cells (now called telocytes) in virtually every anatomic sites of the human body, by Laurentiu M Popescu and co-workers, have dramatically improved the understanding the function of these cells and pathogenesis of extragastrointestinal stromal tumors (EGIST). (imedpub.com)
  • Pancreatic extragastrointestinal stromal tumors (pEGIST), phenotypically similar to pancreatic interstitial Cajal like cells, are extremely rare with an unpredictable biological behavior. (imedpub.com)
  • Results from studies involving discovery on gastrointestinal stromal tumor 1 (DOG-1),the most specific biomarker of GIST/EGIST, has been inconclusive and this was found to be positive in one case only. (imedpub.com)
  • eGIST=extragastrointestinal stromal tumor (arising outside the gastrointestinal tract). (liferaftgroup.org)
  • Gastrointestinal stromal tumors (GISTs) are benign mesenchymal tumors of the gastrointestinal tract. (spandidos-publications.com)
  • Gastrointestinal stromal tumor (GIST) is the most common mesenchymal neoplasm of the gastrointestinal tract and is defined by the expression of the mast/stem cell growth factor receptor, also termed cluster of differentiation (CD)117, a tyrosine kinase growth factor receptor ( 1 ). (spandidos-publications.com)
  • Tumors located in these regions are known as extra-gastrointestinal stromal tumors ( 3 ). (spandidos-publications.com)
  • KIT gain of function mutations play an important role in the pathogenesis of gastrointestinal stromal tumors (GISTs). (aacrjournals.org)
  • Gastrointestinal stromal tumors (GISTs) originate from transformation of interstitial cells of Cajal, a network of innervated cells that coordinate peristalsis in the gastrointestinal system. (aacrjournals.org)
  • Adult granulosa cell tumors are considered as sex cord-stromal of the ovary [ 2 ]. (panafrican-med-journal.com)
  • Historically, Busby considered all tumors currently classified as sex cord-stromal tumors to be "mesenchymomas", derived from the embroyologic genital ridge [ 2 ]. (panafrican-med-journal.com)
  • He underwent laparoscopic low anterior resection for rectal cancer and biopsy of the ileal mesentery lymph node and was diagnosed with rectal cancer as pT3 pN1 cM0 (stage IIIB) and NET (G1) of the ileal mesentery. (springer.com)
  • He had a history of radical prostatectomy for prostate cancer and transurethral bladder tumor resection. (springer.com)
  • We performed laparoscopic low anterior resection for rectal cancer and biopsied an enlarged lymph node in the ileal mesentery to diagnose the tumor. (springer.com)
  • Although we considered complete resection for the NET (G1) lesion, it was a slow-growing tumor, and the 5-year survival rate of patients with gastrointestinal NET (91.3%) is better than that reported for rectal cancer stage IIIB (78.0%) [ 4 , 5 ]. (springer.com)
  • Three years later, anastomosis recurrence occurred, and we performed abdominoperineal resection of the rectal tumor. (springer.com)
  • None of the 7 adult patients with NF-1 and PNF of PH underwent a successful tumor resection. (hindawi.com)
  • Partial colectomy (also called partial bowel resection)-The tumor and normal tissue on either side of the diseased area in the colon are removed. (radiologyinfo.org)
  • Radical resection should be the standard approach in most patients due to the poor accuracy of preoperative and intraoperative assessments of lymph node involvement and the high incidence of lymph node metastases, even in tumors that are smaller than 2 cm. (imedpub.com)
  • Surgical removal of the tumor along with a jejunal resection was performed because the first jejunal loop was firmly attached to the tumor. (biomedcentral.com)
  • Overall survival after surgical resection and clinical behavior of GIST are depending to tumor size and mitotic count, regardless their benign or malignant microscopic features [ 3 ]. (biomedcentral.com)
  • The molecular study of hormone-refractory prostate cancer is difficult because most patients with widely disseminated disease never undergo tumor resection. (aacrjournals.org)
  • Surgical removal of solid tumors is of utmost importance as total resection can be curative. (cancerjournal.net)
  • Meckel's diverticulum giving rise to intestinal ischaemia that requires resection is very rare but potentially fatal complication. (readbyqxmd.com)
  • The standard treatment for GIST is surgery with a complete resection of the tumor. (spandidos-publications.com)
  • The prognosis is strictly associated with the size of the tumor and the completeness of the surgical resection. (spandidos-publications.com)
  • We resected the tumor through a partial resection of the pancreas. (springeropen.com)
  • Aggressive fibromatosis arising from the small bowel mesentery is extremely rare. (semanticscholar.org)
  • Desmoid tumor of the small bowel and the mesentery. (semanticscholar.org)
  • This small, well-circumscribed lesion of small-bowel mesentery caused no symptoms and was incidentally discovered at operation. (medscape.com)
  • The small-bowel mesentery and portions of the large-bowel mesentery are mobile within the peritoneal cavity. (medscape.com)
  • of these, the small-bowel mesentery is almost exclusively the site of involvement. (medscape.com)
  • The tumors were located in the stomach, small bowel, large bowel and peritoneum in 10, 10, 2 and 3 patients respectively. (biomedcentral.com)
  • Fibrosis may also affect the small bowel mesentery or the lungs. (clinicaladvisor.com)
  • Midgut (small bowel, appendix) carcinoid tumors cause the classic carcinoid flush that is best described as cyanotic. (clinicaladvisor.com)
  • About 30-40% of patients with small bowel carcinoid tumors develop carcinoid syndrome, while the tumors of other origins are much less likely to cause carcinoid syndrome. (clinicaladvisor.com)
  • I'm using octreotide for the symptoms and am having surgery 1/21/10 to remove most of the tumors from liver,the one in the mesentery, the gallbladder and to look for the primary in the small bowel. (cancer.org)
  • A, trim a very provocative paper entitled use of anesthetics to diminish erythropoiesis and cause the patient as for live donor transplant, there may be the consequence of the cell intact and the signs of thyrotoxicosis of autoimmune disorders are more sensitive technique for "en bloc" liver small bowel mesentery, extending from the discussion of the. (reprosource.com)
  • In addition, liver metastases from synchronous double cancer of neuroendocrine tumor graded as G1 and second primary malignancies (SPMs) have never been reported before. (springer.com)
  • We herein report a case of multiple liver metastases from synchronous double cancer of NET (G1) at the ileal mesentery and rectal cancer. (springer.com)
  • Histopathological findings revealed that the 14 nodules were metastatic liver tumors of rectal cancer and the 2 nodules were liver metastases of the NET (G1). (springer.com)
  • In addition, there have been cases reported of inflammatory myofibroblastic tumors with characteristics of malignant behavior such as local invasion, recurrence and even metastases. (myesr.org)
  • Carcinoid tumors arising in the bronchi may be associated with manifestations of carcinoid syndrome without liver metastases because their biologically active products reach the systemic circulation before passing through the liver and being metabolized. (wikipedia.org)
  • These autopsies were undertaken specifically to document the distribution of metastases, characterize tumors phenotypically and immunohistochemically, harvest fresh and snap frozen tumor and normal control tissues suitable for molecular examination, and establish cell lines via passages through generations of severe combined immunodeficient and athymic mice. (aacrjournals.org)
  • The carcinoid syndrome occurs when the capacity of the liver to metabolize the secreted bioactive substances is bypassed (liver metastases, bronchial tumors, ovarian tumors) or overwhelmed (extremely large carcinoid tumors). (clinicaladvisor.com)
  • Leads to diminished bone density, smaller tumors without detectable metastases have a role for cardiac valve tumor: Cardiography or by vasculitis vasodilation. (goodbelly.com)
  • After re-evaluation, the authors reclassified 11 of the 14 eGISTs as GISTs that had extensive growth outside of the wall of the gut resulting in a loss of contact with the external muscle coat of the gut (8/14) or as metastases from an inoperable GIST (2/14) or metastases from a previously resected tumor that was thought to be benign (1). (liferaftgroup.org)
  • [ 3 , 4 ] Miettinen et al reported that in a group of 26 cases analyzed by the Armed Forces Institute of Pathology, the incidence of omental and mesenteric tumors was roughly equal. (medscape.com)
  • The incidence of carcinoid tumors is estimated at 2 per 100,000. (clinicaladvisor.com)
  • Incidence of ovarian tumors in dogs ranges between 1-6 percent. (biomedcentral.com)
  • The incidence of desmoid tumors has been reported as 2-4 cases per 1 million [2,3]. (faoj.org)
  • Like radiation therapy, chemotherapy can also ease disease symptoms and increase length of survival for patients with metastatic or incurable tumors. (radiologyinfo.org)
  • The general lack of primary and metastatic tumor samples limits research to either established tumor cell lines or archival material. (aacrjournals.org)
  • The primary goal of this program was to develop a tumor donor program that would allow men with metastatic hormone-refractory prostate cancer to agree to an immediate autopsy shortly after death. (aacrjournals.org)
  • The exploration of the abdominal cavity revealed the presence of diffuse whitish metastatic spots on the serosa of the ileum and a thickening of the mesentery of the terminal ileum. (geocities.ws)
  • The prognosis for patients with these tumors is generally favorable, however can be quite variable and is related to the location of the primary tumor, extent of metastatic disease at initial presentation, and the time of diagnosis. (pubmedcentralcanada.ca)
  • It is also useful in diagnosing other ovarian metastatic tumors, especially in the absence of a known primary elsewhere. (biomedcentral.com)
  • Neuroendocrine tumors (NETs) are slow-growing neoplasms that are derived from the enterochromaffin cells situated in the crypts of Lieberkühn, which belongs to the neuroendocrine system [ 1 ]. (imedpub.com)
  • These neoplasms correspond to 2% of the periampullary malignancies and less than 1% of gastrointestinal neuroendocrine tumors [ 1 , 7 , 8 ]. (imedpub.com)
  • Splenic lymphangiomas are exceedingly rare benign neoplasms that occur mainly in children. (pubfacts.com)
  • In contrast to most other neoplasms, GISTs should be defined by virtue of any degree of association with the muscularis propria (no matter how minimal), but not by localization of the bulk of the tumour. (liferaftgroup.org)
  • Desmoid tumors, also known as aggressive fibromatosis, are extremely rare, accounting for less than 3% of soft-tissue sarcomas and less than 0,03% of all neoplasms. (medihelp.life)
  • Immunostains help to differentiate granulosa cell tumors from other neoplasms. (panafrican-med-journal.com)
  • Granulosa cell tumors (GCT) of the ovary are rare tumor, comprising around 2-5% of ovarian neoplasms [ 1-5 ]. (panafrican-med-journal.com)
  • Colorectal cancer, also called large bowel cancer, is the term used to describe malignant tumors found in the colon and rectum. (radiologyinfo.org)
  • The surgeon sees what the camera sees on a television-type screen and can cut out a large section of the bowel and adjacent tissue, called the mesentery . (radiologyinfo.org)
  • As the upper part of the bowel enters into the lower part, it brings along the mesentery. (blogspot.com)
  • These include the presence of ascites, fixing together of bowel loops, thickening of mesentery, and omental matting. (medscape.com)
  • 3 If the tumor affects bowel, the wall is markedly thickened with minimal enhancement. (appliedradiology.com)
  • Depending on the area of tumor invasion, the bowel lumen may be narrowed or have aneurysmal dilation. (appliedradiology.com)
  • Most when found are in the mesentery or supportive structure of the bowel . (healthtap.com)
  • The large bowel intussusception secondary to primary malignant neoplasm of the bowel is extremely rare in children and we could not collect any such previous reports in the Indian literature. (jpgmonline.com)
  • They are typically derived from the abdominal wall, the bowel and its mesentery, or in extra-abdominal sites such as chest wall, shoulder girdle, inguinal region, and neck. (faoj.org)
  • The lumen natural viagra the bowel is right tumour natural viagra 4i8 ADENOMYOMA chap the same benign. (palaeos.org)
  • As far as we know, major bowel laceration without extraluminal air, ascitic fluid or bowel wall thickening is extremely rare. (heraldopenaccess.us)
  • The mesenteries of the ascending and descending colon become fixed against the retroperitoneum during the normal course of fetal development. (medscape.com)
  • These tumors can be located superficially in the skin or internally in the entire body including mediastinum, retroperitoneum, or GI tract. (hindawi.com)
  • Dedifferentiated liposarcoma most commonly occurs in the retroperitoneum, while an intraperitoneal location is extremely rare. (biomedcentral.com)
  • Dedifferentiated liposarcoma is a variant of liposarcoma with a worse prognosis and it most commonly occurs in the retroperitoneum, while an intraperitoneal location is extremely rare. (biomedcentral.com)
  • There were no collaterals in the colonic mesentery or retroperitoneum. (biomedcentral.com)
  • Turner J, Page M, Clark C and Khanduja K. Department of Surgery, Morehouse School of Medicine, 720 Westview Drive, S.W Atlanta, GA 30310, USA.Figure 1: CT scan showing air within the retroperitoneum and mesentery of the sigmoid colon suggesting perforation. (zerohome.ga)
  • Metachronous Multicentric Giant cell tumor: a case report ABSTRACT Multicentric giant cell tumors represent less than 1% of all giant cell tumors of bones. (ipl.org)
  • Near total replacement of the pancreas with cysts in a patient with Von Hippel Lindau Disease Abstract: Von Hippel Lindau (VHL) disease can affect various organ systems of the body and is associated with tumors and visceral cysts. (ipl.org)
  • Clinical findings and symptoms associated with mesenteric tumors of all types are related to the presence of a mass lesion. (medscape.com)
  • C) On endoscopic ultrasonography, the tumor is a 1.5 cm-sized, heterogeneously hypoechoic lesion in the deep mucosal and submucosal layers. (e-ce.org)
  • Due to the age of the patient and the CT radiological manifestations including the size of the mediastinal lesion, absence of intralesional fat, loss of triangular thymic shape, a soft tissue Hounsfield units as well as the oval shape of the lesion, the likelihood of epithelial thymic tumor namely thymoma has increased [ 3 ]. (biomedcentral.com)
  • Particularly, serous tubal intraepithelial carcinoma (STIC), a noninvasive tumor lesion formed preferentially in the distal fallopian tube epithelium, was proposed as a precursor for HGSC. (mdpi.com)
  • An inflammatory pseudotumor (IPT), also termed inflammatory myofibroblastic pseudotumor, is a rare lesion of unclear pathogenesis. (appliedradiology.com)
  • The clinical presentation of the LLKS lesion is highly unusual and similar to that of classic KS but with multinodular vascular tumors and lymphedema. (pubfacts.com)
  • Initial CT scan showed a hematoma like lesion localized in the transverse-mesentery. (heraldopenaccess.us)
  • They constitute 1-2% of all ovarian tumors [ 1 ]. (hindawi.com)
  • An ovarian cyst can disappear without treatment or become extremely painful and have to be surgically removed. (thefreedictionary.com)
  • These findings indicate a tumor of high-grade malignancy with infiterative tumor cells resembling the papillary ovarian tumor in the serosal surface of the small intestine along with an intact serosa. (biomedcentral.com)
  • Except in the dog, [ 10 ] epithelial ovarian tumors occur less frequently than those of mesenchymal origin. (biomedcentral.com)
  • Primary ovarian tumors are uncommon in domestic animals. (biomedcentral.com)
  • The exact cause of ovarian tumor is unknown. (biomedcentral.com)
  • It may extend haemorrhagic ovarian cyst right tumour and in outline quite filled natural viagra Two years previously the glands of mesentery were caused tissue and their 359 over the remains. (palaeos.org)
  • The current classification of ovarian tumors, however, reflects the contention that granulosa cell tumors arise specifically from the proximal precursors of granulosa cells, the "sex cords" [ 3 ]. (panafrican-med-journal.com)
  • Lesions of the pancreas are fairly common leading to the occurrence of simple cysts, serous cystadenoma or solid tumors. (ipl.org)
  • We present a rare case of a 35 year old woman previously diagnosed with VHL disease whose pancreas on endoscopic ultrasound was found to be replaced by cysts of varying sizes with normal pancreatic tissues and duct not being identified. (ipl.org)
  • These lesions are almost exclusively found in the mesentery of the small intestine, though cysts of the colonic mesentery have also been described. (medscape.com)
  • Mesenteric cysts are mostly benign and rare intra-abdominal tumors, and can be seen as occupying a large cyst. (ircmj.com)
  • Retroperitoneal, omental, and mesenteric cysts are rare intra-abdominal tumors that occur in 1 in every 105,000 hospitalized patients. (ircmj.com)
  • Intra-thymic bronchogenic cysts are a rare entity but should be considered in the differential of all non-invasive thymic masses. (biomedcentral.com)
  • Intra-thymic bronchogenic cysts are extremely rare tumors of the anterior mediastinum. (biomedcentral.com)
  • Bronchogenic cysts are rare congenital anomalies that develop due to a foregut abnormal budding. (biomedcentral.com)
  • Cysts of the colon are extremely rare. (healthtap.com)
  • in even rarer instances as with polyps detected by colonoscopy , lymphatic cysts that have developed and appear in region where polyps found are removed by colonoscopy. (healthtap.com)
  • The tumor was histologically characterized by the presence of cysts and proliferation of papillae, both lined by single- or multi-layered pleomorphic epithelial cells. (biomedcentral.com)
  • Enteric duplication cysts (EDCs) are rare congenital malformations formed during the embryonic development of the digestive tract. (springer.com)
  • An abdominal contrast-enhanced dynamic CT scan showed a 60-mm-diameter tumor in the pancreatic uncinate process, accompanied by multiple cysts (Fig. 1 ), and the tumor size tended to increase over time. (springeropen.com)
  • Neuroendocrine pancreatic tumors are rare and account for 3 percent of pancreatic tumors approximately. (bvsalud.org)
  • The characteristic imaging findings are poorly defined, and distinguishing between this disease and other pancreatic cyst-related tumors is very difficult. (pubfacts.com)
  • It is a rare disease, with most pancreatic vascular malformations being arteriovenous malformations (AVMs) and the other types of malformations being rare. (springeropen.com)
  • Contrast-enhanced dynamic computed tomography (CT) scan revealed that the tumor in the pancreatic uncinate process had a poor contrast effect in the arterial phase and a small contrast effect in the equilibrium phase, which are suggestive of a benign disease-like vascular malformation. (springeropen.com)
  • The pancreatic duct was not enlarged and separated from the tumor. (springeropen.com)
  • The contrast-enhanced dynamic CT scan showed a 60-mm-diameter tumor in the pancreatic uncinate process (red circle in each image). (springeropen.com)
  • Inflammatory myofibroblastic tumors are rare mesenchymal tumors with an undetermined behavior that preferentially occur in children and young adults. (e-ce.org)
  • Mesenchymal tumors arising from the intraperitoneal portion of the subperitoneal space may originate from the lymphatic, vascular, neuromuscular, or fatty tissue. (ircmj.com)
  • A quarter of cases of ampullary neuroendocrine tumors have been detected in patients with neurofibromatosis type I (von Recklinghausen's disease). (imedpub.com)
  • In most ampullary neuroendocrine tumors, the expression of neuroendocrine markers as chromogranin A, neuron specific enolase and synaptophysin, either isolated or in combination is positive. (imedpub.com)
  • Gastrointestinal NETs correspond to a group of well-differentiated neuroendocrine tumors originating from various neuroendocrine cells positioned in the gastrointestinal mucosa and submucosa [ 1 ]. (imedpub.com)
  • Carcinoid tumors are neuroendocrine tumors of the amine precursor uptake decarboxylase cells (APUD cells) of the gastrointestinal tract, bronchi, pancreas, biliary tract, or thymus. (clinicaladvisor.com)
  • Carcinoid tumors are rare, slow-growing neuroendocrine tumors arising from the enterochromaffin cells disseminated throughout the gastrointestinal and bronchopulmonary systems. (pubmedcentralcanada.ca)
  • Carcinoids are rare neuroendocrine tumors (NETs) thought to arise from the enterochromaffin cells (Kulchitsky) cells found throughout the crypts of Lieberkühn of the gut [ 8 ]. (pubmedcentralcanada.ca)
  • Though relatively rare, carcinoid tumors represent the most common gastrointestinal neuroendocrine tumors [ 11 - 14 ]. (pubmedcentralcanada.ca)
  • rather than relying on solid tumor detection, therefore, it is important to consider findings that may suggest the presence of peritoneal lesions. (medscape.com)
  • Not confer strong prognostic impact on both of which is morphologically prognostic relevance has been seen cmdt15_ch31_p1438-p1426.Indd 1350 2/7/19 7:35 am liv , bili yt ct, & p nc s diso d s cmdt 2017 c 23 hapter fails to detect the most common solid tumor patients who could be attempted only in selected patients, early identification of an international, open-label trial. (goodbelly.com)
  • Abdominal computed tomography (CT) showed a tumor of 39 mm in diameter with enlarged lymph nodes in the ileal mesentery and a tumor of 24 mm in diameter in the rectum. (springer.com)
  • These tumors should be considered as an explanation for a palpable abdominal mass, but they are most commonly brought into the differential diagnosis of abdominal pathology once a suggestive radiologic study or an abdominal operation has been performed. (medscape.com)
  • This benign tumor of fetal-embryonal fat tissue is generally recognized when an abdominal mass is palpated on physical examination. (medscape.com)
  • Se presentan clínicamente con síntomas debidos al tumor per se, que pueden incluir dolor abdominal, pérdida de peso o hictericia. (bvsalud.org)
  • Laparoscopic surgery or "keyhole" surgery-Small tube-like instruments and an extremely small camera are inserted into the abdomen through incisions made in the abdominal wall. (radiologyinfo.org)
  • Reports on a rare case of abdominal actinomycosis occurring in the spleen. (ebscohost.com)
  • Abdominal actinomycosis is extremely rare. (ebscohost.com)
  • A rare case of abdominal actinomycosis presenting as an inflammatory pseudotumour. (ebscohost.com)
  • Presents a letter to the editor about a rare case of abdominal actinomycosis affecting the mesentery of the small intestine presenting as an inflammatory tumor. (ebscohost.com)
  • Carcinoid tumors causing carcinoid syndrome are typically slow growing with vague symptoms including abdominal discomfort present for years (median 9.2 years) before a diagnosis is made. (clinicaladvisor.com)
  • Open abdominal exploration and palpation are extremely sensitive for 1- to 2-mm peritoneal nodules. (medscape.com)
  • Only rare cases of retained sponge after abdominal surgery or textiloma or gossipyboma have been published. (surgchronicles.gr)
  • Extra-abdominal desmoid tumor is a rare tumor and only a few cases occurring in the foot have been reported. (faoj.org)
  • Wide local excision was done and the tumor was found mainly in the subcutaneous tissue, which histopathologically proved to be an extra-abdominal desmoid tumor. (faoj.org)
  • Desmoid tumors originate most frequently from abdominal fascial or musculoaponeurotic structures, although they may appear at extra-abdominal sites. (faoj.org)
  • Extra-abdominal desmoid tumors, as seen in our patient, very rarely originate from the extremities. (faoj.org)
  • Mesentery - a thin film of connective tissue, which attaches the intestines to the abdominal wall and which pass blood vessels and nerves. (osvilt.com)
  • One such rare case of extraovarian granulosa cell tumor was encountered in a 60-year-old female patient who presented with a large intra-abdominal mass. (panafrican-med-journal.com)
  • He was diagnosed with rectal cancer with a lymph node metastasis (TNM classification 7th edition, pT3 pN1 cM0, and stage IIIB) and NET (G1) of the ileal mesentery. (springer.com)
  • With regard to the finding of a tumor of the right kidney, metastasis seemed to be the most likely. (degruyter.com)
  • Although hematogenous metastasis has not been reported, inflammatory myofibroblastic tumors have an intermediate biological potential with frequent local recurrence [ 3 ]. (e-ce.org)
  • For localization of both primary lesions and metastasis, the initial imaging method is Octreoscan, where indium-111 labelled somatostatin analogues (octreotide) are used in scintigraphy for detecting tumors expressing somatostatin receptors. (wikipedia.org)
  • The purpose of the study is to verify if there is statistic difference of lung function before surgery based on differences in clinical characteristics (sex, age, degree of differentiation, size of tumor, tumor node metastasis (TNM), methods of surgeries, pleural metastasis, and lymph gland metastasis). (translsurg.com)
  • Analysis of prognosis proved that in patients with a different differentiation degree, size of tumor, metastasis conditions of lymph gland, and TNM stage, a statistically different prognosis was found. (translsurg.com)
  • As anesthetic drugs are given at that time when patient is at the maximum risk of spread of metastasis, thus an understanding of the effect of anesthesia drugs and their impact on tumor metastasis is important so that appropriate anesthetic strategy can be made to improve long term survival in these patients. (cancerjournal.net)
  • Extraovarian granulosa cell tumor (GCT) is a very uncommon tumor, assumed to arise from the ectopic gonadal tissue along the embryonal route of the genital ridge. (hindawi.com)
  • A diagnosis of extraovarian granulosa cell tumor can only be done after excluding any previous history of granulosa cell tumor of the ovary. (panafrican-med-journal.com)
  • Because the size of the tumor had increased, suggesting malignancy, endoscopic submucosal dissection was performed ( Fig. 1D ). (e-ce.org)
  • These findings have led some authors to consider this tumor as a low grade malignancy [2, 5-7]. (myesr.org)
  • The most common tumor localization was in sigmoid colon (41).Surgery for perforated colorectal malignancy in an Asian institutions experience over 5 years. (zerohome.ga)
  • However, diffusion-weighted images revealed a high signal lobulated tumor and suggested potential for malignancy (Fig. 2b ). (springeropen.com)
  • En el tipo medular, el 80% son esporádicos, y un 20% se asocia a un síndrome hereditario que se divide, fundamentalmente, en tres grupos: neoplasia endócrina múltiple 1, neoplasia endócrina múltiple 2 y carcinoma medular de tiroides familiar. (bvsalud.org)
  • Se presenta un caso de carcinoma medular de tiroides detectado a raíz de un estudio genético familiar con el propósito de resaltar la importancia del diagnóstico precoz y la intervención de equipos multidisciplinares expertos en esta patología para su manejo y seguimiento. (bvsalud.org)
  • Solid blue dot tumour: minor salivary gland acinic cell carcinoma. (biomedsearch.com)
  • In addition to traditional prognostic factors of breast carcinoma, molecular biomarkers have played a significant role in tumor prediction and treatment. (cancerjournal.net)
  • Such peripheral production of encephalopathy, but the sustained virologic response remain at risk include those previously well controlled with intermittent attacks of now extremely accurate, utilizing the urinary tract transitional cell carcinoma (rcc) is confirmed. (goodbelly.com)
  • In 1907, Siegfried Obendorfer (1876-1944), a German pathologist at the University of Munich, coined the term karzinoide , or "carcinoma-like", to describe the unique feature of behaving like a benign tumor despite resembling a carcinoma microscopically [ 4 ]. (pubmedcentralcanada.ca)
  • They were patients with squamous cell carcinoma or adenocarcinoma of the esophagus including Siewert type I/II tumor of the esophagogastric junction who underwent subtotal esophagectomy. (readbyqxmd.com)
  • A 66-year-old man was identified as having tumors in the rectum and the ileal mesentery by computed tomography (CT). (springer.com)
  • Computed tomography (CT) scan showed a heterogeneous density mass (measuring 10 × 19 cm) that was contiguous with the mesentery and compressed the third part of the duodenum and jejunum. (biomedcentral.com)
  • Standard imaging tests, including ultrasonography and helical computed tomography (CT) scans, are notably insensitive for the detection of peritoneal tumors. (medscape.com)
  • This means that full removal of the tumor may impair function in the surrounding area. (faoj.org)
  • their main clinical significance lies in the confusion they cause and its misinterpretation as tumors of other organs. (degruyter.com)
  • We encountered a challenging case in clinical practice which prompted us to report our findings and perform a systematic review on the management of these tumors. (hindawi.com)
  • There is no consensus on the management of these tumors given the rarity of clinical presentation. (hindawi.com)
  • The aim of this study was to evaluate the clinical use of tumor abnormal protein (TAP) in the diagnosis of different cancers.Totally 394 patients were divided into 4 groups, namely 100 healthy volunteers, 167 patients with cancer, 20 subjects with precancerous lesions, and 107 subjects with benign lesions. (rare-cancer.org)
  • Case report The authors describe three cases involving neuroendocrine tumor of the ampulla of Vater that were operated upon a single institution and report the etiopathogenic, clinical, diagnostic, therapeutic and prognostic characteristics of this rare neoplasm. (imedpub.com)
  • A NET of the ampulla of Vater is a rare and little isknown about its demographic, biologic behavior and clinical performance [ 2 , 3 , 4 , 5 ]. (imedpub.com)
  • Teratoma of the mesentery is an extremely rare tumour of the germ cells and imposes diagnostic dilemma in clinical practice and is reported because of its very uncommon occurrence. (termsreign.ga)
  • Compiling evidence for RPTs is not easy because this disease is not common and the clinical manifestation of RPTs is extremely complex and diverse. (go.jp)
  • Moreover, concurrent tuberculosis infection in the resected colon was proven by the presence of positive results obtained with polymerase chain reaction analysis of the mycobacterial DNA.Furthermore, collisions of these different entities are also extremely unusual.The accurate clinical determination of the dominant tumor and a timely follow-up are required for the proper treatment of these cases. (nih.gov)
  • The accurate clinical determination of the dominant tumor and a timely follow-up are required for the proper treatment of these cases. (nih.gov)
  • The rarest type of organ transplantation performed, intestine transplantation is becoming increasingly prevalent as a therapeutic option due to improvements in immunosuppressive regiments, surgical technique, PN, and the clinical management of pre and post-transplant patients. (wikipedia.org)
  • Though they have been traditionally classified based upon the embryologic site of origin, morphologic pattern, and silver affinity, newer classification systems have been developed to emphasize the considerable clinical and histopathologic variability of carcinoid tumors found within each embryologic site of origin. (pubmedcentralcanada.ca)
  • The clinical findings, imaging modalities and pathological studies suggested that the GIST was a large and high‑risk tumor located in the abdomino‑pelvic cavity. (spandidos-publications.com)
  • Each clinical phase of disease and tumor evolution can be correlated with specific molecular events. (aacrjournals.org)
  • Context The neuroendocrine tumor of the ampulla of Vater represents a rare disease and, although the majority of them are indolent, this neoplasm has a relatively poor prognosis. (imedpub.com)
  • The prognosis is strictly related to tumor size and number of mitosis. (biomedcentral.com)
  • These efforts may finally systematize the treatment strategy for RPTs and may improve the overall prognosis of this rare disease. (go.jp)
  • The pathogenesis of inflammatory myofibroblastic tumors remains unclear, although various allergic, immunologic, and infectious mechanisms have been postulated [ 2 ]. (e-ce.org)
  • EDCs are rare congenital anomalies from the digestive tract with uncertain pathogenesis. (springer.com)
  • Soft tissue sarcoma (STS) is a rare mesenchymal tumor arising from non-epithelial connective tissue sources. (biomedcentral.com)
  • For four years connective tissue tumour gland spaces in of muscle natural viagra Maresch von Franque seen the same aggregations of tubules gland spaces in trated the muscle same in the only that they peritoneum. (palaeos.org)
  • Carcinoid syndrome is a paraneoplastic syndrome comprising the signs and symptoms that occur secondary to carcinoid tumors. (wikipedia.org)
  • The carcinoid syndrome occurs in approximately 5% of carcinoid tumors and becomes manifest when vasoactive substances from the tumors enter the systemic circulation escaping hepatic degradation. (wikipedia.org)
  • If the primary tumor is from the gastrointestinal tract (hence releasing serotonin into the hepatic portal circulation), carcinoid syndrome generally does not occur until the disease is so advanced that it overwhelms the liver's ability to metabolize the released serotonin. (wikipedia.org)
  • Symptomatic tumors cause the carcinoid syndrome through release of numerous bioactive substances including serotonin and histamine. (clinicaladvisor.com)
  • Carcinoid syndrome is a rare disorder. (clinicaladvisor.com)
  • Neuroendocrine Tumor of the Ampulla of Vater: A Rare Neoplasm in an Atypical Site. (imedpub.com)
  • Peritoneal mesothelioma is a rare neoplasm and forms about 10% of all mesotheliomas. (geocities.ws)
  • Interdigitating dendritic cell sarcoma (IDCS) is an extremely rare neoplasm that mainly arises from the lymphoid tissues of the immune system. (semanticscholar.org)
  • Mesenteric panniculitis of the sigmoid colon is a rare occurrence in surgical practice. (springer.com)
  • We present a rare case of MP of the sigmoid colon and hope to encourage interest in further study and research. (springer.com)
  • The mesentery of the sigmoid colon was markedly thickened, constricted and puckered. (springer.com)
  • This report presents a case of collision tumors of low-grade B-cell lymphoma and adenocarcinoma in the sigmoid colon of an 81-year-old man. (nih.gov)
  • This condition may be associated with the "mesenterium ileocolicum commune" [ 4 ], an abnormality of intestinal fixation, characterized by a common mesentery attaching the terminal ileum, caecum, ascending and right half of the transverse colon. (biomedcentral.com)
  • When pressed upon with biopsy forceps, the tumor was found to be hard and unmovable. (e-ce.org)
  • Because gastric inflammatory myofibroblastic tumors localize in the submucosa, endoscopic biopsy usually reveals only chronic gastritis. (e-ce.org)
  • The duodenos copy revealed a tumor in the major papilla, and a biopsy showed a malignant undifferentiated small cell tumor ( Figure 1 ). (imedpub.com)
  • Biopsy of the tumor was performed, which revealed a moderately differentiated colon adenocarcinoma. (nih.gov)
  • A biopsy revealed that the tumor was composed of spindle cells, and immunohistochemical analysis identified the presence of mast/stem cell growth factor receptors. (spandidos-publications.com)
  • 11 . Agrawal A, Purandare N, Shah S, Rangarajan V. A rare variant of Caffey's disease - X-rays, bone scan and FDG PET findings. (ipl.org)
  • Microscopic findings-sections from the tumor showed small round to oval neoplastic cells with predominantly diffuse and trabecular patterns. (hindawi.com)
  • Because the mass does not involve the tubular portion of the GI tract per se, obstructive symptoms are generally late findings in malignant mesenteric tumors and large benign tumors. (medscape.com)
  • Based on these findings, a diagnosis of an inflammatory myofibroblastic tumor of the stomach was made. (e-ce.org)
  • Rarely, carcinoid tumors result in skin findings similar to scleroderma. (clinicaladvisor.com)
  • Complete surgical excision is necessary for all tumors and follow-up is necessary after surgery for malignant fibrous histiocytoma due to recurrence. (ircmj.com)
  • All patients' data, tumor characteristics, surgical procedure and survival data were analyzed retrospectively. (biomedcentral.com)
  • All patients' data, tumor characteristics, surgical procedure, intra and postoperative complications, as well as follow-up and survival data, was entered in a specifically designated computer data base and was analyzed retrospectively. (biomedcentral.com)
  • The surgical insult however itself may result in tumor micrometastasis coupled with depression of cell-mediated immunity culminating in tumor recurrence. (cancerjournal.net)
  • Surgical removal is the most common cause, performed as a treatment for various gastroenterological and congenital conditions such as Crohn's disease, necrotizing enterocolitis, mesenteric ischemia, motility disorder, omphalocele/gastroschisis, tumors, and volvulus. (wikipedia.org)
  • Tumors of omental origin are less frequent ( 2 ). (ircmj.com)
  • Omental lipomas are extremely rare tumors of childhood. (iranjradiol.com)
  • Treatment options for colorectal cancer depend on the stage of the tumor-that is, how far it has spread or how deeply it is affecting the intestinal wall and other tissues as well as whether it is located in the colon or rectum. (radiologyinfo.org)
  • Collision tumor of low-grade B-cell lymphoma and adenocarcinoma with tuberculosis in the colon: a case report and literature review. (nih.gov)
  • Varices of the colon are a rare cause of lower gastrointestinal bleeding, usually associated with portal hypertension due to liver cirrhosis or other causes of portal venous obstruction. (biomedcentral.com)
  • During the operation, the mass was observed to be attached to the ascending colon mesentery, having the blood supply by the right colic artery. (calcipotriol.net)
  • Colon preps are carefully studied to get the colon clean enough that the endoscopist can carefully examine the lining of your colon and not miss a polyp or tumor. (healthtap.com)
  • More tumors in the colon could more bleeding. (healthtap.com)
  • In this report we describe a rare case of colon cancer associated with intestinal malrotation and mesenterium ileocolicum commune. (biomedcentral.com)
  • tumors of the colon are slightly more frequent in women than in men (1.2:1), whereas rectal carcinomas are more common in men than in women (1.7:1). (cancernetwork.com)
  • Tumors have no malignant potential, but recurrence is reported in 25 - 50% of cases. (ircmj.com)
  • The purpose of the present review is therefore to emphasize the pivotal role of various anesthetic agents and anesthesia techniques in preventing tumor recurrence after surgery. (cancerjournal.net)
  • The newest method of risk of recurrence assessment, the Joenssu pooled analysis, treats eGISTs separately as a tumor location. (liferaftgroup.org)
  • It is rare for primary tumors to arise from the mesentery. (ircmj.com)
  • Primary tumors arising from the mesentery are rare. (ircmj.com)
  • For others, the word determinant of the full-service multi-organ transplantation program at the 8o'clock position of proximal upper pole metanephric blastema at around 2% for primary tumors but were not correlated with a short time before the testis out through the peel. (arrowheadpharma.com)
  • Lymphangiomas, or lymphangiomata, are embryologic malformations of the lymphatic system consisting of benign lymphatic tumors , usually present at birth. (lymphedemapeople.com)
  • A large soft tissue tumor composed of cavernous lymphatic spaces. (lymphedemapeople.com)
  • 2) A tumor formed by dilated lymphatic_vessels and filled with lymph that is often mixed with coagulated blood. (lymphedemapeople.com)
  • These benign lymphatic tumors are unilocular or multilocular masses composed of a collection of thin-walled vesicles resembling a bunch of grapes, filled with clear or yellowish lymph fluid. (lymphedemapeople.com)
  • The mesentery of the gastrointestinal (GI) tract consists of a contiguous, fibrofatty, fanlike structure containing arterial, venous, lymphatic, and neural structures coursing to and from the intestine, along the intestine's entire length. (medscape.com)
  • Lymphatic vessels were therefore marked with subserosal injection of patent blue in the proximity of the tumor. (biomedcentral.com)
  • In 1936, Hart provided the earliest clear description of solid mesenteric tumors. (medscape.com)
  • Primary mesenteric tumors are rare and mostly benign tumors. (ircmj.com)
  • Neuroendocrine tumor (NET) is a relatively rare tumor and may occur in almost any organ [ 1 ]. (springer.com)
  • In some cases the shunt has been removed completely, however this is very rare as it is difficult to determine when a patients condition has changed to enable them to be independent of the shunt and relapse of the condition can occur requiring the patient to undergo surgery for the placement of a shunt again. (gastrointestinalatlas.com)
  • Recognition of the endocrine-related properties of carcinoid tumors did not occur until much later. (pubmedcentralcanada.ca)
  • eGIST is a term used to describe rare GISTs in which the primary tumor is believed to occur outside of the GI tract. (liferaftgroup.org)
  • Update on desmoid tumors. (semanticscholar.org)
  • Extremity desmoid tumors are extremely rare. (faoj.org)
  • Desmoid tumors are unpredictable. (faoj.org)
  • Desmoid tumors are notorious for invading a limb's vital nerves and blood vessels. (faoj.org)
  • The NET (G1) of the ileal mesentery was low grade and had not expanded at follow-up. (springer.com)
  • A fish bone had perforated the top of Meckel's diverticulum, which had been covered by the ileal mesentery. (biomedcentral.com)
  • The mesothelioma of the peritoneum presents a malignant tumour of the mesothelomatous cells of the peritoneum. (geocities.ws)
  • The frozen section specimen showed features of malignant tumour of lymphoid origin. (jpgmonline.com)
  • In the lung it constitutes 0.04 to 1% of all tumors, but it is the most frequent lung mass in children, representing approximately 50% of intrapulmonary tumors. (myesr.org)
  • Pulmonary IPT is the most common primary lung mass seen in children and accounts for approximately 50% of benign intrapulmonary tumors seen in pediatric patients. (appliedradiology.com)
  • The sensitivity of the test results depends on the ability to completely lavage all regions of the peritoneal cavity and the ability to detect cancer cells being shed into the peritoneal cavity by the tumor. (medscape.com)
  • External beam therapy (EBT): a method for delivering a beam of high-energy x-rays or proton beams to the location of the tumor. (radiologyinfo.org)
  • How a desmoids tumor is treated can depend upon the location of the tumor, its characteristics, and patient preferences. (faoj.org)
  • Mesenteric panniculitis (MP) is a benign fibro-inflammatory process involving adipose tissue of the mesentery characterized by the presence of fat necrosis, chronic inflammation and fibrosis. (springer.com)
  • In addition to the previously mentioned peripherally located nodule, the (CT) showed a 2 X 2 cm well-defined oval shaped enhancing soft tissue anterior mediastinal tumor with (Hounsfield units of 55). (biomedcentral.com)
  • It is usually misdiagnosed clinically as soft tissue tumour or soft tissue infection. (ebscohost.com)
  • Soft tissue tumor. (medihelp.life)
  • D esmoid tumors, also known as aggressive fibromatosis, are an extremely rare entity is a locally infiltrative fibroblastic tumor that arises from fascial planes of soft tissue but does not metastasize. (faoj.org)
  • For example, tumor cells were found to participate in the blood perfused, vascular channel formation in tissue samples from melanoma and glioblastoma patients 8, 10, 11 . (jove.com)
  • This highly vascular tumour was supplied by the branches of right internal iliac, external iliac and femoral arteries. (ipl.org)
  • PNFs of the PH are extremely rare and even more technically challenging to resect given the location and close relationship with the biliary and vascular inflow to the liver. (hindawi.com)
  • 2 The vascular encasement in Burkitt lymphoma differs from encasement seen in other tumors such as neuroblastoma. (appliedradiology.com)
  • Obtain vascular control or confusion regarding the phenomenological features of hypertelorism are: (1) screening with recombinant human interleukin-4 to treat tumors known to be treated by local therapy 1. (arrowheadpharma.com)
  • Instead, it also has been used to test the ability of a number of tumor cells to develop a vascular phenotype 6-8 . (jove.com)
  • Therefore, this assay may serve as powerful utility to screen the vascular potential of a variety of cell types including vascular cells, tumor cells as well as other cells. (jove.com)
  • Histomorphological features were that of predominantly spindle cell tumor which consistently expressed c-KIT/CD117 and CD34 by immunohistochemistry, making these two as the most sensitive markers at this site. (imedpub.com)
  • Histopathological examination suggested a diagnosis of spindle cell tumor. (spandidos-publications.com)
  • The tumor was positive for inhibin and negative for EMA, thus confirming the diagnosis of extraovarian GCT (adult type )of mesentery. (hindawi.com)
  • Although PNFs are benign they have the potential to transform into malignant peripheral nerve sheath tumors which demonstrate aggressive behavior. (hindawi.com)
  • While not all STICs may transform into malignant tumors, these lesions are clearly associated with increased risk for HGSC. (mdpi.com)
  • Occupational vinyl chloride exposure was first associated with development of liver cancer in 1974, when rare liver angiosarcomas were detected in three workers who worked in a vinyl chloride polymerization plant. (europa.eu)
  • Both studies found a substantial increase in the relative risk for liver angiosarcoma in the exposed workers, a tumour that is extremely rare in the general population. (europa.eu)
  • The tumour like mass in the caecum was hard in consistency, irregular in outline and arising from the caecal wall itself Liver, spleen and other viscera were found normal. (jpgmonline.com)
  • The Octreo Scan showed about 9 tumors in liver. (cancer.org)
  • I had a lot of my liver removed but all the tumors are gone! (cancer.org)
  • My wife is on oral chemo and the last scan showed the tumors shrinking (first really good news we had in a while)Hers started in the prancreas and move to the liver, ovaries, and lymph nodes. (cancer.org)
  • Liver abscess due to gastrointestinal perforation by foreign bodies is rare. (biomedcentral.com)
  • We report a case of young girl with metachronous multicentric giant cell tumors with 5 documented lesions in a monomelic lower limb. (ipl.org)
  • Multicentric giant cell tumor of bone: ten lesions at presentation. (ipl.org)
  • This article discusses mass lesions of the mesentery, including nonprimary tumors with manifestations related to the mesentery. (medscape.com)
  • Recently, increasing attention has been brought to the possibility that many potential precursor or premalignant lesions, though composed of microscopically-and genetically-cancerous cells, do not advance to malignant tumors or lethal malignancies. (mdpi.com)
  • The occurrence of this disease in the lower gastrointestinal tract is extremely rare. (biomedsearch.com)
  • Indolent T cell lymphoproliferative disorder of the gastrointestinal tract or Indolent T cell lymphoproliferative disorder of the GI tract (ITCLD-GT) is a rare and recently recognized disorder in which mature T cell lymphocytes accumulation abnormally in the gastrointestinal tract (GI tract). (wikipedia.org)
  • Hepatic abscess due to perforation of the gastrointestinal tract caused by ingested foreign bodies is a rare complication. (upjs.sk)
  • Uncommon Intraluminal Tumors of the Gallbladder and Biliary Tract: Spectrum of Imaging Appearances. (rare-cancer.org)
  • Of human actinomycosis, the spinal form is rare and actinomycosis-related spinal neurological deficit is uncommon. (ebscohost.com)
  • Table 1 Clinicopathologic summary of instances with adenocarcinoma arising inside a colonic duplication cyst In conclusion, intestinal duplication is an uncommon congenital abnormality, and malignant switch inside a duplication is extremely rare. (calcipotriol.net)
  • Immature teratoma in mesentery is still rarer. (bvsalud.org)
  • Inflammatory myofibroblastic tumors involving the stomach are extremely rare. (e-ce.org)
  • The inflammatory myofibroblastic tumor was initially described in the lung by Brunn in 1939, and designated as an inflammatory pseudotumor in 1954 by Umiker et al. (myesr.org)
  • Xanthogranulomatous inflammation (XGI) is a rare benign inflammatory disease characterized by aggregation of lipid-laden foamy macrophages. (biomedsearch.com)
  • Xanthogranulomatous inflammation (XGI) is a relatively rare chronic inflammatory process that is characterized by prominent histiocytic component with clusters of xanthoma-type cells. (biomedsearch.com)
  • Microscopic pathologic sections from the involved mesentery demonstrated a chronic reactive inflammatory process with exuberant proliferation of fibroblasts, fibrocytes and fibrosis (figure 2 ). (biomedcentral.com)