Adenoma: A benign epithelial tumor with a glandular organization.Adenoma, Pleomorphic: A benign, slow-growing tumor, most commonly of the salivary gland, occurring as a small, painless, firm nodule, usually of the parotid gland, but also found in any major or accessory salivary gland anywhere in the oral cavity. It is most often seen in women in the fifth decade. Histologically, the tumor presents a variety of cells: cuboidal, columnar, and squamous cells, showing all forms of epithelial growth. (Dorland, 27th ed)Adenoma, Villous: 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)Pituitary Neoplasms: Neoplasms which arise from or metastasize to the PITUITARY GLAND. The majority of pituitary neoplasms are adenomas, which are divided into non-secreting and secreting forms. Hormone producing forms are further classified by the type of hormone they secrete. Pituitary adenomas may also be characterized by their staining properties (see ADENOMA, BASOPHIL; ADENOMA, ACIDOPHIL; and ADENOMA, CHROMOPHOBE). Pituitary tumors may compress adjacent structures, including the HYPOTHALAMUS, several CRANIAL NERVES, and the OPTIC CHIASM. Chiasmal compression may result in bitemporal HEMIANOPSIA.Adrenocortical Adenoma: A benign neoplasm of the ADRENAL CORTEX. It is characterized by a well-defined nodular lesion, usually less than 2.5 cm. Most adrenocortical adenomas are nonfunctional. The functional ones are yellow and contain LIPIDS. Depending on the cell type or cortical zone involved, they may produce ALDOSTERONE; HYDROCORTISONE; DEHYDROEPIANDROSTERONE; and/or ANDROSTENEDIONE.Adenoma, Liver Cell: A benign epithelial tumor of the LIVER.Adenoma, Chromophobe: A benign tumor of the anterior pituitary in which the cells do not stain with acidic or basic dyes.Growth Hormone-Secreting Pituitary Adenoma: A pituitary tumor that secretes GROWTH HORMONE. In humans, excess HUMAN GROWTH HORMONE leads to ACROMEGALY.Colorectal Neoplasms: Tumors or cancer of the COLON or the RECTUM or both. Risk factors for colorectal cancer include chronic ULCERATIVE COLITIS; FAMILIAL POLYPOSIS COLI; exposure to ASBESTOS; and irradiation of the CERVIX UTERI.Colonic Polyps: Discrete tissue masses that protrude into the lumen of the COLON. These POLYPS are connected to the wall of the colon either by a stalk, pedunculus, or by a broad base.ACTH-Secreting Pituitary Adenoma: A pituitary adenoma which secretes ADRENOCORTICOTROPIN, leading to CUSHING DISEASE.Adenoma, Acidophil: A benign tumor, usually found in the anterior lobe of the pituitary gland, whose cells stain with acid dyes. Such pituitary tumors may give rise to excessive secretion of growth hormone, resulting in gigantism or acromegaly. A specific type of acidophil adenoma may give rise to nonpuerperal galactorrhea. (Dorland, 27th ed)Colonoscopy: Endoscopic examination, therapy or surgery of the luminal surface of the colon.Adenomatous Polyps: Benign neoplasms derived from glandular epithelium. (From Stedman, 25th ed)Prolactinoma: A pituitary adenoma which secretes PROLACTIN, leading to HYPERPROLACTINEMIA. Clinical manifestations include AMENORRHEA; GALACTORRHEA; IMPOTENCE; HEADACHE; visual disturbances; and CEREBROSPINAL FLUID RHINORRHEA.Adenoma, Basophil: A small tumor of the anterior lobe of the pituitary gland whose cells stain with basic dyes. It may give rise to excessive secretion of ACTH, resulting in CUSHING SYNDROME. (Dorland, 27th ed)Adrenal Cortex Neoplasms: Tumors or cancers of the ADRENAL CORTEX.Adenomatous Polyposis Coli: A polyposis syndrome due to an autosomal dominant mutation of the APC genes (GENES, APC) on CHROMOSOME 5. The syndrome is characterized by the development of hundreds of ADENOMATOUS POLYPS in the COLON and RECTUM of affected individuals by early adulthood.Acromegaly: A condition caused by prolonged exposure to excessive HUMAN GROWTH HORMONE in adults. It is characterized by bony enlargement of the FACE; lower jaw (PROGNATHISM); hands; FEET; HEAD; and THORAX. The most common etiology is a GROWTH HORMONE-SECRETING PITUITARY ADENOMA. (From Joynt, Clinical Neurology, 1992, Ch36, pp79-80)Cushing Syndrome: A condition caused by prolonged exposure to excess levels of cortisol (HYDROCORTISONE) or other GLUCOCORTICOIDS from endogenous or exogenous sources. It is characterized by upper body OBESITY; OSTEOPOROSIS; HYPERTENSION; DIABETES MELLITUS; HIRSUTISM; AMENORRHEA; and excess body fluid. Endogenous Cushing syndrome or spontaneous hypercortisolism is divided into two groups, those due to an excess of ADRENOCORTICOTROPIN and those that are ACTH-independent.Genes, APC: Tumor suppressor genes located in the 5q21 region on the long arm of human chromosome 5. The mutation of these genes is associated with familial adenomatous polyposis (ADENOMATOUS POLYPOSIS COLI) and GARDNER SYNDROME, as well as some sporadic colorectal cancers.Hyperparathyroidism: A condition of abnormally elevated output of PARATHYROID HORMONE (or PTH) triggering responses that increase blood CALCIUM. It is characterized by HYPERCALCEMIA and BONE RESORPTION, eventually leading to bone diseases. PRIMARY HYPERPARATHYROIDISM is caused by parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. SECONDARY HYPERPARATHYROIDISM is increased PTH secretion in response to HYPOCALCEMIA, usually caused by chronic KIDNEY DISEASES.Salivary Gland Neoplasms: Tumors or cancer of the SALIVARY GLANDS.Colonic Neoplasms: Tumors or cancer of the COLON.Intestinal Neoplasms: Tumors or cancer of the INTESTINES.Hyperplasia: An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.Neoplasms, Multiple Primary: 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.Adrenal Gland Neoplasms: Tumors or cancer of the ADRENAL GLANDS.Pituitary ACTH Hypersecretion: A disease of the PITUITARY GLAND characterized by the excess amount of ADRENOCORTICOTROPIC HORMONE secreted. This leads to hypersecretion of cortisol (HYDROCORTISONE) by the ADRENAL GLANDS resulting in CUSHING SYNDROME.Parotid Neoplasms: Tumors or cancer of the PAROTID GLAND.Immunohistochemistry: Histochemical localization of immunoreactive substances using labeled antibodies as reagents.Carcinoma: A malignant neoplasm made up of epithelial cells tending to infiltrate the surrounding tissues and give rise to metastases. It is a histological type of neoplasm but is often wrongly used as a synonym for "cancer." (From Dorland, 27th ed)Hyperaldosteronism: A condition caused by the overproduction of ALDOSTERONE. It is characterized by sodium retention and potassium excretion with resultant HYPERTENSION and HYPOKALEMIA.Sphenoid Bone: An irregular unpaired bone situated at the SKULL BASE and wedged between the frontal, temporal, and occipital bones (FRONTAL BONE; TEMPORAL BONE; OCCIPITAL BONE). Sphenoid bone consists of a median body and three pairs of processes resembling a bat with spread wings. The body is hollowed out in its inferior to form two large cavities (SPHENOID SINUS).Duodenal Neoplasms: Tumors or cancer of the DUODENUM.Adrenocorticotropic Hormone: An anterior pituitary hormone that stimulates the ADRENAL CORTEX and its production of CORTICOSTEROIDS. ACTH is a 39-amino acid polypeptide of which the N-terminal 24-amino acid segment is identical in all species and contains the adrenocorticotrophic activity. Upon further tissue-specific processing, ACTH can yield ALPHA-MSH and corticotrophin-like intermediate lobe peptide (CLIP).Pituitary Gland: A small, unpaired gland situated in the SELLA TURCICA. It is connected to the HYPOTHALAMUS by a short stalk which is called the INFUNDIBULUM.Adenocarcinoma: A malignant epithelial tumor with a glandular organization.Hyperparathyroidism, Primary: A condition of abnormally elevated output of PARATHYROID HORMONE due to parathyroid HYPERPLASIA or PARATHYROID NEOPLASMS. It is characterized by the combination of HYPERCALCEMIA, phosphaturia, elevated renal 1,25-DIHYDROXYVITAMIN D3 synthesis, and increased BONE RESORPTION.Thyroid Neoplasms: Tumors or cancer of the THYROID GLAND.Precancerous Conditions: Pathological processes that tend eventually to become malignant. (From Dorland, 27th ed)Sella Turcica: A bony prominence situated on the upper surface of the body of the sphenoid bone. It houses the PITUITARY GLAND.Sigmoidoscopy: Endoscopic examination, therapy or surgery of the sigmoid flexure.Choristoma: A mass of histologically normal tissue present in an abnormal location.Rectal Neoplasms: Tumors or cancer of the RECTUM.Pituitary Apoplexy: The sudden loss of blood supply to the PITUITARY GLAND, leading to tissue NECROSIS and loss of function (PANHYPOPITUITARISM). The most common cause is hemorrhage or INFARCTION of a PITUITARY ADENOMA. It can also result from acute hemorrhage into SELLA TURCICA due to HEAD TRAUMA; INTRACRANIAL HYPERTENSION; or other acute effects of central nervous system hemorrhage. Clinical signs include severe HEADACHE; HYPOTENSION; bilateral visual disturbances; UNCONSCIOUSNESS; and COMA.Human Growth Hormone: A 191-amino acid polypeptide hormone secreted by the human adenohypophysis (PITUITARY GLAND, ANTERIOR), also known as GH or somatotropin. Synthetic growth hormone, termed somatropin, has replaced the natural form in therapeutic usage such as treatment of dwarfism in children with growth hormone deficiency.Colon: The segment of LARGE INTESTINE between the CECUM and the RECTUM. It includes the ASCENDING COLON; the TRANSVERSE COLON; the DESCENDING COLON; and the SIGMOID COLON.Pituitary Hormones: Hormones secreted by the PITUITARY GLAND including those from the anterior lobe (adenohypophysis), the posterior lobe (neurohypophysis), and the ill-defined intermediate lobe. Structurally, they include small peptides, proteins, and glycoproteins. They are under the regulation of neural signals (NEUROTRANSMITTERS) or neuroendocrine signals (HYPOTHALAMIC HORMONES) from the hypothalamus as well as feedback from their targets such as ADRENAL CORTEX HORMONES; ANDROGENS; ESTROGENS.Adenomatous Polyposis Coli Protein: A negative regulator of beta-catenin signaling which is mutant in ADENOMATOUS POLYPOSIS COLI and GARDNER SYNDROME.Parathyroidectomy: Excision of one or more of the parathyroid glands.Urethane: Antineoplastic agent that is also used as a veterinary anesthetic. It has also been used as an intermediate in organic synthesis. Urethane is suspected to be a carcinogen.Intestinal Mucosa: Lining of the INTESTINES, consisting of an inner EPITHELIUM, a middle LAMINA PROPRIA, and an outer MUSCULARIS MUCOSAE. In the SMALL INTESTINE, the mucosa is characterized by a series of folds and abundance of absorptive cells (ENTEROCYTES) with MICROVILLI.Adenoma, Bile Duct: A benign tumor of the intrahepatic bile ducts.Prolactin: A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate.Colon, Descending: The segment of LARGE INTESTINE between TRANSVERSE COLON and the SIGMOID COLON.
(1/60) Villous adenoma of the bile ducts: a case report and a review of the reported cases in Korea.

Villous adenomas are benign epithelial lesions with malignant potential which can occur at any site in the gastrointestinal tract. They are usually encountered in the rectum and colon, less frequently in the small bowel and very rarely in the biliary trees. Nine cases of bile duct villous adenomas have been reported in the literature. However, 4 cases of bile duct villous adenomas have been reported in the Korean literature. Recently, we experienced a case of villous adenoma in the common hepatic duct in a 77-year-old man presenting with obstructive jaundice in which preoperative histologic diagnosis of villous adenoma played a critical role in managing this patient. Herein, we present a case report of bile duct villous adenoma and a review of the reported cases in Korea to help define and manage this rare disease entity in the bile ducts. In addition, confusing nomenclature of bile duct adenomas is discussed.  (+info)

(2/60) Treatment options for villous adenoma of the ampulla of Vater.

INTRODUCTION: Duodenal villous adenoma arising from the ampulla of Vater has a high risk of malignant development. Excluding associated malignant disease prior to resection of an adenoma of the ampulla is not always possible. Therefore, the surgical procedure of choice to treat this rare tumour is still controversial. OBJECTIVE: To evaluate retrospectively results of treatment of villous adenoma arising from ampulla of Vater with dysplasia or associated carcinoma limited to the ampulla. PATIENTS AND METHODS: From 1985 to 1996, eight patients have been diagnosed with ampullary villous adenoma suitable for resection. We have reviewed treatment, morbidity, mortality, follow-up and final outcome. RESULTS: Pancreatoduodenectomy (PD) was performed in 4 patients. Transduodenal ampullectomy and endoscopic resection was performed in 2 patients each. There was no perioperative mortality. None of the patients had biliary, pancreatic or intestinal leakage but two patients who underwent PD had minor postoperative complications. The mean follow-up was 44 (range: 6-132) months. Villous adenoma was associated with adenocarcinoma in 50% of the cases (4/8 patients). During the follow-up both patients who underwent transduodenal ampullectomy developed recurrent disease. All patients initially treated by PD are alive without evidence of recurrent disease. CONCLUSIONS: Treatment of villous adenoma of the ampulla must be individualized within certain limits. In our series, PD achieve good results and it appears to be the procedure of choice in order to treat villous adenomas with proved presence of carcinoma, carcinoma in situ or severe dysplasia. Endoscopic or local resection may be appropriate for small benign tumours in high risk patients.  (+info)

(3/60) Adenoma of the papillae of Vater. Report of eleven cases.

Eleven patients with a preoperative diagnosis of adenoma of the papillae of Vater were followed up during the fifteen-year period from 1984 till 1998 in the Oulu University Hospital. Seven patients were treated primarily by transduodenal excision without any recurrences so far. One of these seven patients was found to have adenocarcinoma in a histological examination. Active surgery for adenoma of the papillae of Vater is recommended because of the precancerous nature of the lesion, and because malignancy cannot always be detected by endoscopic biopsies. Transduodenal excision could be recommend for patients at high operative risk, especially in cases with small adenomas and low-grade dysplasia, where histologically free resection margins can be achieved, but pancreaticoduodenectomy should still be performed on patients at low operative risk.  (+info)

(4/60) Overexpression of cyclin D1 mRNA in colorectal carcinomas and relationship to clinicopathological features: an in situ hybridization analysis.

Increased expression of a key cell cycle regulator, cyclin D1, may have relevance to carcinogenesis and clinicopathological characteristics of some cancers. This study represents the first application of in situ hybridization, ISH, to detect cyclin D1 mRNA in tissue sections from colorectal carcinomas. This approach was selected because of its unique potential to clarify whether increased expression of cyclin D1 mRNA correlates with clinical and pathological parameters. The ISH ofa non-radioactive oligonucleotide probe (Biogenex) was immunocytochemically detected in paraffin embedded sections from biopsy or resection specimens. Tumors ranged from well to poorly differentiated, and from stages A, B, C, and D. Ten year survival data were available on the majority of patients. Intensity of tumor and background (smooth muscle) signals were independently scored from 0 to 3. Overexpressed cyclin D1 mRNA was seen in 86% of cases compared to background. This frequency is similar to that reported for pancreatic carcinoma. The average signal intensity score in tumor foci was 1.9 with a background score of 0.05 (p<001). All cases showed specific staining judged by the cytoplasmic localization and a tumor signal:background ratio >1. Expression did not differentiate cancers based on grade, stage or survival (p>1), but did differentiate carcinoma and severe dysplasia from mild dysplasia. We conclude that ISH of cyclin D1 mRNA is an effective and relatively specific means of detecting activity of this gene in colonic neoplasms. The high frequency of overexpression implies that gene activity by itself is not likely to predict a tumor s biological or clinical behavior. On the other hand, these data suggest that increased cyclin D1 gene activity may be an early event in colorectal carcinogenesis. They also are consistent with findings showing cyclin D1 is inducible by a variety of oncogene products.  (+info)

(5/60) Lack of mucin MUC5AC field change expression associated with tubulovillous and villous colorectal adenomas.

BACKGROUND: MUC5AC is a secreted mucin aberrantly expressed by polypoid colorectal adenomas. It has been hypothesised that the "normal" surrounding colorectal mucosa expresses MUC5AC as a field change phenomenon that can be used to predict adenoma recurrence following resection. AIM: To determine if there is a field change of de novo MUC5AC expression in histologically normal rectal mucosa adjacent to villous and tubulovillous adenomas, and thus whether MUC5AC expression can be used as a marker of early tumour recurrence. METHODS: In a prospective cohort study paired mucosal biopsies of adenomatous and macroscopically "normal" mucosa were obtained from 11 patients with villous and 11 patients with tubulovillous adenomas who underwent primary resection for purpose of cure. The tissues were studied to determine MUC5AC gene expression by immunohistochemistry and in situ hybridisation. Patients were followed up by flexible sigmoidoscopy to detect the presence of early local recurrence. RESULTS: 10 villous adenomas showed mature MUC5AC glycoprotein and all 11 expressed MUC5AC mRNA. Five tubulovillous adenomas showed mature MUC5AC glycoprotein and 10 expressed MUC5AC mRNA. Neoexpression of the MUC5AC mucin gene was not detected in any of the mucosal biopsies taken adjacent to either villous or tubulovillous adenomas, even in three patients with early, locally recurrent disease. CONCLUSIONS: Aberrant MUC5AC gene expression is not a "field change" in the colorectal mucosa in patients with rectal adenomas and therefore cannot be used to predict local recurrence of villous and tubulovillous adenomas.  (+info)

(6/60) Offline telepathology diagnosis of colorectal polyps: a study of interobserver agreement and comparison with glass slide diagnoses.

BACKGROUND/AIMS: Technological advances have produced telepathology systems with high quality colour images and reasonable transmission times. Most applications of telepathology have centred on the remote diagnosis of frozen sections or remote real time expert opinions. This study investigates the reproducibility and accuracy of offline telepathology as a primary diagnostic medium for routine histopathology specimens. METHODS: One hundred colorectal polyps (50 hyperplastic, 50 adenomatous) were presented in a randomised order to five histopathologists as offline images on a telepathology workstation. Six images of each case were used: the slide label, a low power scan of all material on the slide, and four higher magnification views. The times taken to prepare the images, and to make the diagnoses, were recorded. Interobserver agreement was measured with kappa statistics and compared with the glass slide diagnoses. RESULTS: The kappa statistics for the interobserver agreement on the telepathology images lay in the range of 0.90-1.00, which is interpreted as excellent agreement, and were significantly higher than those for the glass slide diagnoses (range, 0.84-0.98; p = 0.001). The median time taken to capture the images for a case was 210 seconds. The median time taken to make a diagnosis from the telepathology images was five seconds, which was significantly shorter than for the glass slide diagnoses (median, 13 seconds; p < 0.0005). CONCLUSIONS: Offline telepathology has the potential to be a primary diagnostic medium for routine histopathology with a high degree of reproducibility and short diagnosis times. Further studies are required to validate offline telepathology for different types of specimens and different operators of the image capture system.  (+info)

(7/60) Infectious endocarditis from Streptococcus bovis associated with colonic carcinoma: case report and literature review.

BACKGROUND: Many studies in the literature have warned of the need for investigation of colonic lesions among patients, especially elderly ones, who have bacteremia and/or endocarditis from Streptococcus bovis. Bacteremia and infectious endocarditis from Streptococcus bovis may be related to the presence of neoplastic lesions in the large intestine and hepatic disease. AIM: This report describes a patient who presented infectious endocarditis from Streptococcus bovis associated with colonic carcinoma and tubular-villous adenomas. CONCLUSIONS: The finding of this bacterium among patients with septicemia and/or endocarditis is also related to the presence of villous or tubular-villous adenomas in the large intestine. For this reason, complete and detailed investigation of the large intestine must be performed in patients with infectious endocarditis, even in the absence of intestinal symptoms. An increased incidence of this condition or hepatic dysfunction has been reported among patients with infectious endocarditis from Streptococcus bovis. Patients with infectious endocarditis from Streptococcus bovis and normal colonoscopy may be included in the group at risk for developing colonic cancer. The knowledge that there is an association between endocarditis from Streptococcus bovis and carcinoma of the colon has important clinical implications. If the lesion can be discovered at an early stage, curative resection may become possible.  (+info)

(8/60) Mucinous adenocarcinoma with superficial stromal invasion and villous adenoma of urachal remnants: a case report.

This report describes a case of mucinous adenocarcinoma with superficial stromal invasion and villous adenoma originating in the dome of the urinary bladder. Although no urachal remnants were identified, the location suggested urachal derivation. Only two previous cases of urachal adenocarcinoma with features of early stromal invasion associated with a villous tumour have been described.  (+info)

*  Villous adenoma
Colorectal cancer Sessile serrated adenoma Tubulovillous adenoma Villous adenoma entry in the public domain NCI Dictionary of ... These adenomas may become malignant (cancerous). Villous adenomas have been demonstrated to contain malignant portions in about ... Villous adenoma is a type of polyp that grows in the colon and other places in the gastrointestinal tract and sometimes in ... Being an adenoma, the mass is covered in columnar epithelial cells. ...
*  Villoglandular adenocarcinoma of the cervix
Endometrial cancer Glassy cell carcinoma Villous adenoma Very low mag. Intermed. mag. Very high mag. Korach, J.; Machtinger, R ...
*  Tubulovillous adenoma
TVAs are considered to have a higher risk of malignant transformation than tubular adenomas. Villous adenoma Colorectal polyp ... Tubulovillous adenoma, TVA, is a type of polyp that grows in the colon and other places in the gastrointestinal tract and ... Tubulovillous adenoma entry in the public domain NCI Dictionary of Cancer Terms This article incorporates public domain ...
*  McKittrick-Wheelock Syndrome
It is estimated that 2-3% of large villous adenomas, typically greater than 4 cm in diameter, will present with this ... The treatment is supportive until the villous adenoma can be resected surgically. Popescu, A; Orban-Schiopu, A; Becheanu, G; et ... McKittrick-Wheelock Syndrome is an uncommon syndrome caused by large, villous adenomas that secrete high quantities of ... In 1954 they reported a case of an 84-year-old woman with a large villous papilloma of the rectum, who presented with weakness ...
*  Twenty-fifth Amendment to the United States Constitution
On July 12, 1985, President Ronald Reagan underwent a colonoscopy, during which a villous adenoma (a pre-cancerous lesion) was ...
*  Colorectal cancer
Precancer - Colorectal villous adenoma Staging is typically made according to the TNM staging system from the WHO organization ... If a villous polyp, a polyp >1 centimeter or high grade dysplasia is found, it can be repeated after 3 years, then every 5 ... Most (50%) colorectal adenomas and (80-90%) colorectal cancer tumors are thought to over express the cyclooxygenase-2 (COX-2) ... Virtual colonoscopy via a CT scan appears as good as standard colonoscopy for detecting cancers and large adenomas but is ...
*  Colorectal polyp
... villous adenoma): Tubular Adenoma: 5% risk of cancer Tubulovillous adenoma: 20% risk of cancer Villous adenoma: 40% risk of ... The common adenomas of the colon (colorectal adenoma) are the tubular, tubulovillous, villous, and sessile serrated (SSA). As ... villous adenomas are no more likely than tubular or tubulovillous adenomas to become cancerous if their sizes are all the same ... Neoplastic polyps of the bowel are often benign hence called adenomas. An adenoma is a tumor of glandular tissue, that has not ...
*  Sessile serrated adenoma
Unlike traditional colonic adenomas (e.g. tubular adenoma, villous adenoma), they do not (typically) have nuclear changes ( ... The surveillance interval is dependent on (1) the number of adenomas, (2) the size of the adenomas, and (3) the presence of ... Intestinal adenomas - halflytely.com. Pathology of Serrated Colon Adenomas - Medscape. ... In gastroenterology, a sessile serrated adenoma (abbreviated SSA), also known as sessile serrated polyp (abbreviated SSP), is a ...
*  Rectal discharge
... villous adenoma, poor anal hygiene Rare causes include: sexually transmitted diseases (e.g. syphilis, rectal gonorrhea, ... Adenomas are not malignant, but rarely adenocarcinoma can develop from them. Large adenomas can cause rectal bleeding, mucus ... Cryotherapy Adenoma is the most common colorectal polyp. ...
*  International Classification of Diseases for Oncology
Villous papilloma M8261/2 Adenocarcinoma in situ in villous adenoma M8261/3 Adenocarcinoma in villous adenoma M8262/3 Villous ... Black adenoma Pigmented adenoma M8373/0 Adrenal cortical adenoma, clear cell (C74.0) M8374/0 Adrenal cortical adenoma, ... Oxyphilic adenoma Oncocytic adenoma Oncocytoma Hurthle cell adenoma(C73.9) Hurthle cell tumor Follicular adenoma, oxyphilic ... NOS Pick tubular adenoma Sertoli cell adenoma Tubular androblastoma, NOS Testicular adenoma M8640/3 Sertoli cell carcinoma (C62 ...
*  Index of oncology articles
... villous adenoma - villus - vinblastine - vinca alkaloid - vincristine - vindesine - vinorelbine - viral vector - virotherapy - ... tubulovillous adenoma - tumor - tumor antigen vaccine - tumor board review - tumor burden - tumor debulking - tumor ... adenoma - adenopathy - adenosine triphosphate - adenovirus - adjunct agent - adjunctive therapy - adjuvant therapy - ...
*  Colorectal adenoma
... tubular adenoma tubulovillous adenoma villous adenoma sessile serrated adenoma (SSA) Hardcastle, J. D.; Armitage, N. C. (1984 ... The colorectal adenoma is a benign glandular tumor of the colon and the rectum. It is a precursor lesion of the colorectal ...
*  Polyp (medicine)
... everywhere in the colon and they are the least likely colon polyps to develop into colon cancer Tubulovillous Villous adenomas ... Adenomas constitute approximately 10% of digestive polyps. Most polyps (approximately 90%) are small, usually less than 1 cm in ... The remaining 10% of adenomas are larger than 1 cm and approach a 10% chance of containing invasive cancer. There are three ... Sessile polyps larger than 2 cm usually contain villous features, have a higher malignant potential, and tend to recur ...
*  List of MeSH codes (C04)
... adenoma, villous MeSH C04.557.470.035.200 --- adenomatoid tumor MeSH C04.557.470.035.210 --- adenomatosis, pulmonary MeSH ... adenoma, acidophil MeSH C04.557.470.035.075 --- adenoma, basophil MeSH C04.557.470.035.085 --- adenoma, bile duct MeSH C04.557. ... adenoma, liver cell MeSH C04.557.470.035.140 --- adenoma, oxyphilic MeSH C04.557.470.035.155 --- adenoma, pleomorphic MeSH ... adenoma, acidophil MeSH C04.557.465.625.650.075 --- adenoma, basophil MeSH C04.557.465.625.650.095 --- adenoma, chromophobe ...
*  Adenoma
The architecture may be tubular, villous, or tubulo-villous. Basement membrane and muscularis mucosae are intact. Adenomas of ... An adenoma (from Greek αδένας, adeno-, "gland" + -ώμα, -oma, "tumor") (/ˌædɪˈnoʊmə/; plural adenomas or adenomata /ˌædɪˈnoʊmɪtə ... Hepatic adenomas are a rare benign tumour of the liver, which may present with hepatomegaly or other symptoms. Breast adenomas ... Bronchial adenomas are adenomas in the bronchi. They may cause carcinoid syndrome, a type of paraneoplastic syndrome. A ...
Adenomatous polyps of the colon  Adenomatous polyps of the colon
What are tubular adenomas, tubulovillous adenomas, and villous adenomas? Desmoid tumors tend to recur new jersey 12 steps ... Larger adenomas may have a villous growth pattern. Although most people with mutations in the APC gene will develop colorectal ... Adenomas with a villous growth pattern are also more likely to have cancers develop in them. Erratum in: Gastroenterology. Some ... Many adenomas have a mixture help for sciatic nerve pain of both growth patterns, and are called tubulovillous adenomas. ...
more infohttp://herbalpalace.com/adenomatous-polyps-of-the-colon
Health Sciences Research Commons - GW Research Days 2016 - Present: Race Does Not Affect the Prevalence of Sporadic Adenomas in...  Health Sciences Research Commons - GW Research Days 2016 - Present: Race Does Not Affect the Prevalence of Sporadic Adenomas in...
Sporadic adenomas included serrated, tubular, villous, and tubulovillous adenoma formation. A database was created using ... A total of 12 (8.8%) sporadic adenomas were found, 8 of which were serrated and 4 tubular. The incidence of sporadic adenomas ... The average age of AA with adenomas was 44.7 years and 50.4 years in Caucasians. Average disease duration was 16.3 years in AA ... These data, however, are studying the general population and to our knowledge no study has looked at differences in adenoma ...
more infohttps://hsrc.himmelfarb.gwu.edu/gw_research_days/2016/SMHS/15/
Villous adenoma - Wikipedia  Villous adenoma - Wikipedia
Colorectal cancer Sessile serrated adenoma Tubulovillous adenoma Villous adenoma entry in the public domain NCI Dictionary of ... These adenomas may become malignant (cancerous). Villous adenomas have been demonstrated to contain malignant portions in about ... Villous adenoma is a type of polyp that grows in the colon and other places in the gastrointestinal tract and sometimes in ... Being an adenoma, the mass is covered in columnar epithelial cells. ...
more infohttps://en.wikipedia.org/wiki/Villous_adenoma
Colon Villous Adenoma at 20x Magnification | MicroscopyU  Colon Villous Adenoma at 20x Magnification | MicroscopyU
The prevalence of adenomas increases with age and the growths are more common among individuals living in certain regions of ... Cigarette smoking has also been linked to an increased risk of developing adenomas. Such lifestyle-related risk factors are ... Though the exact causes of villous adenomas and other colonic polyps are not known, there are several known risk factors for ... Colon Villous Adenoma at 20x Magnification. Though the exact causes of villous adenomas and other colonic polyps are not known ...
more infohttps://www.microscopyu.com/gallery-images/colon-villous-adenoma-at-20x-magnification
Colon Villous Adenoma at 40x Magnification | MicroscopyU  Colon Villous Adenoma at 40x Magnification | MicroscopyU
Villous adenomas are usually sessile polyps that have an architecture predominantly characterized by the presence of finger- or ... According to current estimates, the risk of a villous adenoma undergoing malignant transformation is as high as 25 percent ... These growths are more likely than any other type of adenoma to become cancerous. ... Several subtypes of adenomas have been described, which chiefly are differentiated from one another by microscopic observation ...
more infohttps://www.microscopyu.com/gallery-images/colon-villous-adenoma-at-40x-magnification-1
Adenomas, Villous - Medical Dictionary online-medical-dictionary.org  Adenomas, Villous - Medical Dictionary online-medical-dictionary.org
Adenomas, Villous. An Adenoma of the Large Intestine. It is usually a solitary, sessile, often large, Tumor of colonic Mucosa ...
more infohttp://www.online-medical-dictionary.org/definitions-a/adenomas-villous.html
A Giant Mucinous Adenocarcinoma Arising within a Villous Adenoma of the Urachus: Case Report and Review of the Literature  A Giant Mucinous Adenocarcinoma Arising within a Villous Adenoma of the Urachus: Case Report and Review of the Literature
J. W. Lin and W. J. Chen, "Villous adenoma of the urinary bladder: a case report," Chang Gung Medical Journal, vol. 18, no. 3, ... J. L. Channer, J. L. Williams, and L. Henry, "Villous adenoma of the bladder," Journal of Clinical Pathology, vol. 46, no. 5, ... D. C. Miller, D. L. Gang, V. Gavris, J. Alroy, A. A. Ucci, and E. C. Parkhurst, "Villous adenoma of the urinary bladder: a ... J. N. Eble, M. T. Hull, R. G. Rowland, and M. Hostetter, "Villous adenoma of the urachus with mucusuria: a light and electron ...
more infohttps://www.hindawi.com/journals/crim/2009/818646/ref/
A Giant Mucinous Adenocarcinoma Arising within a Villous Adenoma of the Urachus: Case Report and Review of the Literature.  A Giant Mucinous Adenocarcinoma Arising within a Villous Adenoma of the Urachus: Case Report and Review of the Literature.
... consisting of both villous adenoma and mucinous adenocarcinoma of the urachus. The tumor was incidentally discovered during ... Villous adenoma is not frequently found outside the large bowel. In the literature, less than 30 cases of villous adenoma of ... Villous adenomas have been reported as papillary enteric adenoma or villous tumor. The origin may be from the urachus or caused ... only 3 cases of coexistent villous adenoma and adenocarcinoma of the urachus have been described so far [8?10]. Villous adenoma ...
more infohttp://www.biomedsearch.com/nih/Giant-Mucinous-Adenocarcinoma-Arising-within/20182635.html
Adenoma, Villous  Adenoma, Villous
Villous. On-line free medical diagnosis assistant. Ranked list of possible diseases from either several symptoms or a full ... Ranked list of diseases related to "adenoma, villous"Drugs, active principles and "adenoma, villous"Medicinal plantsQuestions ... Adenoma, villous. An adenoma of the large intestine. It is usually a solitary, sessile, often large, tumor of colonic mucosa ...
more infohttps://lookfordiagnosis.com/mesh_info.php?term=Adenoma%2C+Villous&lang=1
Villous adenoma, Ask a Doctor about diagnosis, treatment and medication for Villous adenoma - Doctors insight on...  Villous adenoma, Ask a Doctor about diagnosis, treatment and medication for Villous adenoma - Doctor's insight on...
Villous adenoma is a type of polyp that grows in the colon and other places in the gastrointestinal tract and sometimes in ... Villous adenoma What is Villous adenoma?. Villous adenoma is a type of polyp that grows in the colon and other places in the ... These adenomas may become malignant (cancerous). Villous adenomas have been demonstrated to contain malignant portions in about ... Questions and answers on "Villous adenoma". Why am I pooping red bright blood and having stomach ache? ...
more infohttps://www.healthcaremagic.com/topics/disease-and-conditions/villous-adenoma/116258
Endoscopic Nd:YAG laser therapy for villous adenomas of the ri...  Endoscopic Nd:YAG laser therapy for villous adenomas of the ri...
Laser therapy is an effective method for the destruction of sessile adenomas of the ri ... YAG laser therapy for villous adenomas of the right colon.: ... Endoscopic Nd:YAG laser therapy for villous adenomas of the ... Laser therapy is an effective method for the destruction of sessile adenomas of the right colon in selected patients. ...
more infohttps://www.mysciencework.com/publication/show/endoscopic-nd-yag-laser-therapy-villous-adenomas-right-colon-91c79a41
Videos - Papillary Villous Adenoma - Endoscopic Staging and Staging | DrugsUpdate India  Videos - Papillary Villous Adenoma - Endoscopic Staging and Staging | DrugsUpdate India
drugsupdate.com - India's leading online platform for Doctors and health care professionals. Updates on Drugs, news, journals, 1000s of videos, national and international events, product-launches and much more...Latest drugs in India, drugs, drugs update, drugs update
more infohttp://www.drugsupdate.com/videos/listing/1514
Case No. 8: Villous Adenoma with Carcinoma of Colon Radiology Definition  Case No. 8: Villous Adenoma with Carcinoma of Colon Radiology Definition
8: Villous Adenoma with Carcinoma of Colon. Case No. 8: Villous Adenoma with Carcinoma of Colon. Case No. 8: Villous adenoma ... Villous adenoma with carcinoma of colon. Key Points:. The barium enema, particularly with a double-contrast technique, is ...
more infohttp://radiologydefinition.com/case-no-8-villous-adenoma-carcinoma-colon/
A Case of Rectal Villous Adenoma in a 28-Year-Old Female Patient Presenting with Chronic Diarrhea and Acute Renal Failure |...  A Case of Rectal Villous Adenoma in a 28-Year-Old Female Patient Presenting with Chronic Diarrhea and Acute Renal Failure |...
Secretory villous adenoma is one of the rare causes of severe secretory diarrhea, acute kidney injury and refractory ... Background: Secretory villous adenoma is one of the rare causes of severe secretory diarrhea, acute kidney injury and ... A Case of Rectal Villous Adenoma in a 28-Year-Old Female Patient Presenting with Chronic Diarrhea and Acute Renal Failure ... the biopsy confirmed the presence of villous adenoma with high grade dysplasia . Normalization of the electrolyte imbalance and ...
more infohttp://www.imedpub.com/abstract/a-case-of-rectal-villous-adenoma-in-a-28yearold-female-patient-presenting-with-chronic-diarrhea-and-acute-renal-failure-21667.html
36 - GI System IV Flashcards by  | Brainscape  36 - GI System IV Flashcards by | Brainscape
Tubular adenoma. - Villous adenoma. Note that sometimes we see a mix between the two types ...
more infohttps://www.brainscape.com/flashcards/36-gi-system-iv-3145919/packs/4955175
Week 2 Flashcards by Krystal Green | Brainscape  Week 2 Flashcards by Krystal Green | Brainscape
Villous adenoma. Osmotic - increased amounts of poorly absorbable osmotically active solutes in the gut lumen ...
more infohttps://www.brainscape.com/flashcards/week-2-6101851/packs/9250974
Where Can You Go for Treatment for Claudication? | Reference.com  Where Can You Go for Treatment for Claudication? | Reference.com
What Is the Difference Between Tubular and Villous Adenomas?. * Q: What Is a Positive Reaction to a TB Skin Test?. ...
more infohttps://www.reference.com/health/can-treatment-claudication-edceb5b020eaaf09
Micrograph of a colorectal villous adenoma. Credit: Nephron.  Micrograph of a colorectal villous adenoma. Credit: Nephron.
MicroCal PEAQ-DSC Automated is a high-quality protein stability analysis instrument, designed for the regulated environment. This system delivers high-throughput, sensitive protein stability analysis, with low-sample consumption, in an automated, integrated platform for increased productivity. ...
more infohttps://www.drugdevelopment-technology.com/news/kyn-therapeutics-begins-trials/attachment/villous/
July-August 1981 - Volume 24 - Issue 5 : Diseases of the Colon & Rectum  July-August 1981 - Volume 24 - Issue 5 : Diseases of the Colon & Rectum
Excision of villous adenoma of the rectum with a stapler. Engelberg, Moshe; Lifschitz, Oscar ... Histogenesis of microscopic adenoma and hyperplastic (metaplastic) gland in nonpolyposis coli PDF Only. ... Colonic adenomas: Stereology and growth mechanisms. Elias, Hans; Hyde, Dallas M.; Mullens, Ronald S.; More ... Histogenesis of microscopic adenoma and hyperplastic (metaplastic) gland in nonpolyposis coli. Oohara, Takeshi; Ogino, Akihito ...
more infohttps://journals.lww.com/dcrjournal/toc/1981/24050
Colonoscopy (fibro-colonoscopy (FCS), video-colonoscopy)  Colonoscopy (fibro-colonoscopy (FCS), video-colonoscopy)
6. Mucosectomy is excision of involved mucosal sector (sectors with dysplasia, sessile polyps, villous adenomas) after chromo- ... This method is used to identify depth of inflammation or invasion (for tumors) and malignant changes in adenomas. ...
more infohttp://proctolog.ua/en/issledovaniye-kishechnika/kolonoskopiya
  • These data, however, are studying the general population and to our knowledge no study has looked at differences in adenoma formation by race in IBD patients. (gwu.edu)
  • Certain racial groups like African Americans (AA) are at increased risk of developing colorectal cancer (CRC), but there is conflicting literature on differences in sporadic adenoma formation. (gwu.edu)
  • A total of 12 (8.8%) sporadic adenomas were found, 8 of which were serrated and 4 tubular. (gwu.edu)
  • There is even less data regarding the difference in sporadic adenoma formation between different races in IBD patients. (gwu.edu)
  • While some literature suggests a difference in the prevalence of sporadic adenomas among AA and Caucasians in the general population, the present study found no such difference for our population of colitis patients. (gwu.edu)
  • The study of sporadic adenoma formation in IBD is still in its early stages. (gwu.edu)
  • While differences in risk have not yet been well-characterized, further understanding of the molecular mechanisms underlying adenoma development might allow us to stratify risk more appropriately. (gwu.edu)
  • Though the exact causes of villous adenomas and other colonic polyps are not known, there are several known risk factors for the growths and steps that may be taken in order to reduce the likelihood of developing them. (microscopyu.com)
  • [ 49 , 50 ] The selective cyclooxygenase-2 (COX-2) inhibitor celecoxib has also been shown to cause modest regression of colonic adenomas in patients with FAP. (medscape.com)
  • [ 54 ] Owing to concerns about their adverse effects, NSAIDs are not currently recommended for either treatment or prevention of sporadic colonic adenomas in average-risk patients. (medscape.com)
  • Chemoprevention-with sulindac, a nonsteroidal anti-inflammatory drug (NSAID)-has been shown to significantly reduce the number and size of adenomas in patients with familial adenomatous polyposis (FAP). (medscape.com)
  • The prevalence of adenomas increases with age and the growths are more common among individuals living in certain regions of the world, primarily highly developed nations such as the United States and Great Britain. (microscopyu.com)
  • Several subtypes of adenomas have been described, which chiefly are differentiated from one another by microscopic observation of the manner in which the cells of the growths are organized. (microscopyu.com)
  • Miraca Life Sciences (MLS), the nation's largest independent anatomic pathology lab, has enhanced the pathologic summary reports it provides to gastroenterologists, which can be used in the calculation of their adenoma detection rate (ADR). (prweb.com)