| familial adenomatous polyposis | <gastroenterology> Genetic disease with numerous precancerous polyps in the colon and rectum. Also called familial polyposis. (12 Dec 1998) |
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| adenomatous polyposis coli | An autosomal dominant polyposis syndrome in which the colon contains few to thousands of adenomatous polyps, often occurring by age 15 to 25. (12 Dec 1998) |
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| familial intestinal polyposis | Begins usually in late childhood; polyps increase in numbers, causing symptoms of chronic colitis, and carcinoma of the colon almost invariably develops in untreated cases; autosomal dominant inheritance. In the Gardner syndrome there are extracolonic changes (desmoid tumours, etc.). Synonym: polyposis coli. Hamartomatous polyposis of the small or large intestine, Peutz-Jeghers syndrome with melanin spots on the lips, less common, miscellaneous, rare, and doubtful occurrences. Synonym: familial intestinal polyposis. (05 Mar 2000) |
| familial polyposis | An inherited condition in which several hundred polyps develop in the colon and rectum. (12 Dec 1998) |
| familial polyposis coli | <gastroenterology, oncology> A inherited, disorder where there are multiple adenomatous polyps (up to several thousand) in the colon. Malignant degeneration of the polyps (to colon carcinoma) occurs in virtually 100% by age 40. Inheritance: autosomal dominant. (27 Sep 1997) |
| adenomatous | Relating to an adenoma, and to some types of glandular hyperplasia. (05 Mar 2000) |
| adenomatous colon polyps | <radiology> Probability of malignancy by size and type Size (cm) less than 1 1-2 greater than 2 --------------------------- tubular 1% 10% 34% mixed (TV) 4% 9% 45% villous 10% 10% 54%, most colon polyps (90%) are hyperplastic (size less than 5 mm) (12 Dec 1998) |
| adenomatous goiter | An enlargement of the thyroid gland due to the growth of one or more encapsulated adenomas or multiple nonencapsulated colloid nodules within its substance. (05 Mar 2000) |
| adenomatous polyp | A polyp that consists of benign neoplastic tissue derived from glandular epithelium. Synonym: cellular polyp, polypoid adenoma. (05 Mar 2000) |
| adenomatous polyps | Benign neoplasms derived from glandular epithelium. (12 Dec 1998) |
| multiple intestinal polyposis | Begins usually in late childhood; polyps increase in numbers, causing symptoms of chronic colitis, and carcinoma of the colon almost invariably develops in untreated cases; autosomal dominant inheritance. In the Gardner syndrome there are extracolonic changes (desmoid tumours, etc.). Synonym: polyposis coli. Hamartomatous polyposis of the small or large intestine, Peutz-Jeghers syndrome with melanin spots on the lips, less common, miscellaneous, rare, and doubtful occurrences. Synonym: familial intestinal polyposis. (05 Mar 2000) |
| polyposis | Presence of several polyps. Origin: polyp + G. -osis, condition (05 Mar 2000) |
| polyposis coli | Hereditary disorder (Mendelian dominant) characterised by the development of hundreds of adenomatous polyps in the large intestine, which show a tendency to progress to malignancy. The APC gene has also been implicated in a chromosome 5 gastric and pancreatic cancer. (18 Nov 1997) |
| polyposis syndromes | <radiology> Inher. Malig. Type familial polyposis coli dom and adenoma Gardner syndrome dom and Turcot syndrome rec CNS Peutz-Jeghers syndrome dom (+) hamartoma Cowden syndrome dom ? juvenile polyposis coli (?) - juvenile Cronkhite-Canada syndrome (12 Dec 1998) |
| juvenile polyposis coli | <radiology> Benign polyposis, inheritance uncertain, inflammatory or retention polyps: round, smooth, soft, mucin-filled, non-neoplastic, onset less than 10 yrs, polyps can prolapse through anus, associated with diarrhoea, protein loss see: polyposis syndromes, Cronkhite-Canada syndrome (12 Dec 1998) |
| filiform polyposis | <radiology> Benign, non-specific sequela of diffuse, severe mucosal inflammation, UC, Crohn's, XR: thin, straight filling defects, resembles stalks of polyps without heads (12 Dec 1998) |