This report describes general characteristics of the group of diseases classified as familial adenomatous polyposis (FAP). FAP is a genetically heterogeneous disorder, with multiple genes and mapped loci. A listing of FAP subtypes, as defined by OMIM, may be found in the table below, with links to more detailed reports for subtypes that have been investigated using fly models.
[updated Jan. 2016 by FlyBase; FBrf0222196]
Familial adenomatous polyposis (FAP) is a disorder characterized by predisposition to cancer. Affected individuals usually develop hundreds to thousands of adenomatous polyps of the colon and rectum, a small proportion of which will progress to colorectal carcinoma if not surgically treated (Nishisho et al., 1991; pubmed:1651563). [from MIM:175100; 2016.01.14]
Familial adenomatous polyposis is a genetically heterogeneous disorder.