Consequently, this article focuses on the more common benign and malignant neoplasms of the GI tract in children, in addition to information gleaned from the relatively sparse literature. (medscape.com)
and may aid in the distinction of terminally differentiated smooth muscle cells, smooth muscle neoplasms of the gastrointestinal tract and the staging of bladder carcinoma. (biocare.net)
A leiomyosarcoma of the gastrointestinal tract is extremely rare. (springeropen.com)
A leiomyosarcoma (LMS) of the gastrointestinal (GI) tract belonging to soft tissue sarcomas is extremely rare and accounts for approximately 1% of malignant mesenchymal tumors in the GI tract [ 1 ], and surgical resection is the only curative treatment option. (springeropen.com)
Smooth muscle tumors represent the second most common mural mesenchymal neoplasm in the gastrointestinal tract, but established criteria for prognostic assessment of these tumors are lacking. (elsevierpure.com)
They have been reported to occur in almost every portion of the gastrointestinal tract. (medscape.com)
[ 1 ] Duplication cysts in the mediastinum frequently contain ciliated epithelium, which is rarely found in the remainder of the gastrointestinal tract. (medscape.com)
Leiomyosarcomas are sporadic malignant tumors that frequently arise from soft tissues, smooth muscles of the uterus, or gastrointestinal tract. (panafrican-med-journal.com)
A leiomyoma is a relatively harmless and non-spreading tumor that arises from the smooth muscle of the stomach and intestinal tract. (petmd.com)
Your veterinarian may also perform an upper gastrointestinal tract endoscopy, by which a flexible tube with an attached camera is inserted into the space to be examined, in this case the gastrointestinal tract, allowing the doctor to visually inspect the space for abnormalities. (petmd.com)
If a tumor is suspected, your doctor will need to perform a mucosal biopsy, and if possible, will take a tissue sample of the mass in the gastrointestinal tract. (petmd.com)
GISTs (Gastrointestinal stromal tumors) are most common mesenchymal neoplasms of gastrointestinal tract. (scirp.org)
Endoscopy involves the insertion of a fiber-optic viewing tube into the gastrointestinal tract. (apollohospitals.com)
Tumors16
Benign and malignant smooth-muscle tumors of the esophagus in children account for fewer than 5% of all leiomyomas and leiomyosarcomas. (medscape.com)
A large cohort of surgically resected intramural gastrointestinal smooth muscle tumors from 31 institutions was analyzed to identify potential prognostic features. (elsevierpure.com)
[ 1 ] Intestinal leiomyosarcomas are mesenchymal tumors of smooth muscle origin. (medscape.com)
GISTs, however, have been shown to lack characteristics of smooth muscle tumors on histologic examination. (medscape.com)
Background: Gastrointestinal stromal tumors (GIST) are rare mesenchymal tumors that may mimic ovarian tumor on presurgical testing. (scirp.org)
Considering that only few patients with gastrointestinal stromal tumors have been reported in the obstetrical and gynecological literature, the awareness of such an entity by the obstetricians-gynecologists is necessary in order to facilitate coordinated approach with the general surgeons and oncologists for the optimal care of the patients. (scirp.org)
1% of all Gastrointestinal (GI) tumors and its incidence is approximately 10 - 20 per million people per year. (scirp.org)
While most tumors metastatic to the serous membranes are of epithelial origin, cytologists should be aware that non-epithelial neoplasms can also cause malignant effusions including sarcomas, melanomas, germ cell tumors, and, more rarely, brain tumors. (cytojournal.com)
Common non-epithelial neoplasms that may cause malignant effusions include malignant melanoma, sarcomas, and other neoplasms including germ cell tumors [ Figure 1 ]. (cytojournal.com)
Desmoid tumors arise most frequently from the aponeurosis of the rectus abdominal muscle of multiparous women. (wikipedia.org)
Desmoid tumors are cytologically bland fibrous neoplasms originating from the musculoaponeurotic structures throughout the body. (medscape.com)
Although desmoid tumors can arise in any skeletal muscle, they most commonly develop in the anterior abdominal wall and shoulder girdle. (medscape.com)
Immunostaining with vimentin, alpha smooth muscle actin, muscle actin, and desmin are helpful in distinguishing the tumors in the differential diagnosis of desmoid tumors. (medscape.com)
Although desmoid tumors most commonly arise from the rectus abdominis muscle in postpartum women and in scars due to abdominal surgery, they may arise in any skeletal muscle. (medscape.com)
Desmoid tumors tend to infiltrate adjacent muscle bundles, frequently entrapping them and causing their degeneration. (medscape.com)
Фіброміома матки Uterine fibroids (leiomyomas) are benign smooth muscle tumors of the uterus. (msdmanuals.com)
Malignant neoplasms3
Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms . (lookformedical.com)
Of this uncommon group of highly malignant neoplasms, the leiomyosarcoma is the most common histiotype. (medscape.com)
Nonmesotheliomatous cancers of the pleura include an assortment of malignant neoplasms that primarily or secondarily involve pleura. (medscape.com)
Benign2
Background: Perivascular epithelioid cell tumours (PEComas) are mesenchymal neoplasms with variable biological behaviour, ranging from benign to extremely aggressive diseases able to metastasize. (fortuneonline.org)
Функціональні кісти яєчників Benign ovarian masses include functional cysts (eg, corpus luteum cysts) and neoplasms (eg, benign teratomas). (msdmanuals.com)
Transfer of a neoplasm from its primary site to lymph nodes or to distant parts of the body by way of the lymphatic system. (lookformedical.com)
Primary pulmonary leiomyosarcomas is a subtype of pulmonary sarcoma, accounting for less than 0.5% of all malignant pulmonary neoplasms. (panafrican-med-journal.com)
Primary gastrointestinal (GI) sarcomas in general are a very rare entity, accounting for 1-2% of GI malignancies. (medscape.com)
Although musculoskeletal and other chest wall conditions are the most common aetiology for chest pain presenting to primary care, an initial differential diagnosis should include cardiovascular, psychogenic, pulmonary, gastrointestinal, and miscellaneous or unknown sources (more to less common, respectively). (painspa.co.uk)
The primary differential medical diagnosis of GIST contains simple muscles tumours (leiomyoma and leiomyosarcoma), nerve sheath tumours (schwannoma and neurofibroma), inflammatory fibroid polyp and desmoid fibromatosis. (moonphase2018.com)
GIST1
Colonic mucosa with gastrointestinal stromal tumor (GIST) involving adjacent submucosa (hematoxylin and eosin [H&E] stain, medium power). (medscape.com)
Pancreatic2
Pancreatic neuroendocrine neoplasms (pNENs) are an increasingly common group of malignancies that arise within the endocrine tissue of the pancreas. (rarediseases.org)
[ 2 ] We report a case of enterogenous cyst of probable foregut origin that appeared clinically as a pancreatic cystic neoplasm. (medscape.com)
Tumor6
Nonfunctioning neuroendocrine neoplasms can still cause symptoms relating to tumor size and location such as obstruction or internal bleeding. (rarediseases.org)
Case Report: We reported a case of 55-year-old post menopausal woman who presented to us as ovarian mass which turned out to be malignant epithelioid gastrointestinal stromal tumor intraoperatively and by immunohistochemistry. (scirp.org)
Our case was also presented as ovarian mass which turned out to be malignant epithelioid gastrointestinal stromal tumor intraoperatively and by immunohistochemistry. (scirp.org)
Histopathology report showed the retroperitoneal mass to be a malignant epithelioid gastrointestinal tumor. (scirp.org)
Histologically the tumor showed the mass to be a malignant epitheioid gastrointestinal stromal tumor with mitoses in 8 - 9 of 10 high-power fields ( Figure 1 ). (scirp.org)
Diagnosing non-epithelial malignancies in effusion specimens based entirely upon their cytomorphologic features is difficult because these neoplasms often exhibit considerable morphological overlap and their cytomorphology can differ from the original tumor. (cytojournal.com)
Tumours3
Muscle metastases (MM) from solid tumours are rare. (biomedcentral.com)
Furthermore, simple muscles tumours and nerve sheath tumours are positive for desmin and S100 proteins diffusely, respectively. (moonphase2018.com)
However, it really is known that tumours arising in the intestines are associated generally.CD34 could be expressed by 60C70% from the tumours, and simple muscles actin (SMA) appearance is detected in 30C40% from the situations. (moonphase2018.com)
Metastasis1
Additionally, a retrospective search in Pubmed database using the keywords "muscle metastasis", "muscle metastases", "intramuscular metastasis", "intramuscular metastases" and "metastases to the musculature" was performed. (biomedcentral.com)
Cysts1
In contrast, abdominal enterogenous cysts usually contain gastrointestinal epithelium and smooth muscle. (medscape.com)
Tissue8
Neoplasms that arise from endocrine tissue may also secrete hormones, resulting in excessive levels of these hormones in the body and potentially a wide variety of symptoms. (rarediseases.org)
Pathologic features were assessed by expert gastrointestinal and/or soft tissue pathologists at each center. (elsevierpure.com)
Abnormal growths of tissue that follow a previous neoplasm but are not metastases of the latter. (lookformedical.com)
Gardner syndrome or familial adenomatous polyposis (FAP) is characterized by colorectal adenomatous polyps and soft and hard tissue neoplasms. (medscape.com)
The pathology of CHD is characterized by plaque-like deposition of fibrous tissue on valvular cusps, leaflets, papillary muscles, chordae, and ventricular walls. (karger.com)
SFTs of the pleura are localized mesenchymal neoplasms composed of fibroblastlike cells believed to arise from the subpleural connective tissue. (medscape.com)
Synovial sarcoma is a malignant soft-tissue neoplasm that most commonly affects the extremities near to, but not in continuity with, large joints. (medscape.com)
Cystic1
Most cystic lesions of the pancreas are inflammatory pseudocysts, but approximately 10% are cystic neoplasms. (medscape.com)
GISTs1
Larger GISTs type external, pedunculated public attached to external facet of gastrointestinal buildings. (moonphase2018.com)
Epithelial3
As malignant cells have a tendency to round up in body fluids these non-epithelial neoplasms can therefore mimic reactive mesothelial cells and metastatic adenocarcinoma. (cytojournal.com)
4 Malignant effusions caused by non-epithelial neoplasms are more frequently encountered in children than in adults. (cytojournal.com)
By definition, pseudomesotheliomatous carcinoma refers to an epithelial neoplasm that secondarily involves the pleura and encases the lung, thereby simulating the radiologic and macroscopic appearance of malignant mesothelioma. (medscape.com)
Arise1
The extra-abdominal form is rare and desmoids of the breast may arise in the mammary gland or may occur as an extension of a lesion arising from the muscles of the chest wall. (wikipedia.org)
Retroperitoneal1
Retroperitoneal neoplasms are more common in familial polyposis coli and Gardner syndrome after abdominal surgery than in other conditions. (medscape.com)
Common1
The most common causes of rib cage pain are a pulled muscle or bruised ribs. (caballosperalta.es)
Malignancies1
Therefore, the purpose of this study was to describe radiological features of muscle metastases, and to compare their patterns in different malignancies. (biomedcentral.com)
Gastric1
The case is unique, differing from previous reports in that ciliated respiratory epithelium, transitional epithelium, gastric mucosa, a bilayered smooth muscle wall, and a serosal surface were present in the cyst wall. (medscape.com)
Lymphocytes1
and lymphoma, a solid neoplasm that originates in the lymphocytes -- a type of white blood cell in the bloodstream. (petmd.com)
Abdominal1
The largest mass at the left of the retroperitoneum was 13 cm x 9 cm x 7 cm extended upwards to left kidney, renal artery and vein, abdominal aorta and psoas muscle and downwards to descending colon and reached pelvis where it appeared in contiguity with the homolateral external iliac artery. (fortuneonline.org)
Histologically1
The neoplasms may be histologically the same or different, and may be found in the same or different sites. (lookformedical.com)
Urinary1
Muscarinic agonists in sufficient dosage can increase secretion of exocrine glands, such as salivary and sweat glands and increase tone of the smooth muscle in the gastrointestinal and urinary tracts. (nih.gov)
The development of the second neoplasm may or may not be related to the treatment for the previous neoplasm since genetic risk or predisposing factors may actually be the cause. (lookformedical.com)
Neurofibromatosis 1 is an autosomally dominated inherited genetic condition that predisposes those involved to the development of intracranial neoplasms. (medlink.com)
Myeloproliferative neoplasms (MPNs) are blood conditions caused by genetic mutations in blood stem cells in the bone marrow. (mympnteam.com)
Extraocular1
MM were localised most frequently in the thigh muscles, the extraocular musculature, and the gluteal and paravertebral muscles. (biomedcentral.com)
Organs1
The second neoplasm may have the same or different histological type and can occur in the same or different organs as the previous neoplasm but in all cases arises from an independent oncogenic event. (lookformedical.com)
Smooth muscles2
It can originate from the smooth muscles of pulmonary parenchyma, interstitium, or pulmonary vasculatures [ 1 , 2 ]. (panafrican-med-journal.com)
During a meal, the smooth muscles in the gallbladder wall contract, leading to the bile being secreted into the duodenum. (apollohospitals.com)
Surgery1
NORD gratefully acknowledges Simon Schimmack, MD, University Hospital of General, Visceral and Transplantation Surgery of Heidelberg, Germany, and Gastrointestinal Pathobiology Research Group, Department of Gastroenterological Surgery, Yale University School of Medicine, for assistance in the preparation of this report. (rarediseases.org)