Familial adenomatous polyposis means: Familial Adenomatous Polyposis: This genetic condition is characterized by many precancerous colon polyps and the rectum. Colon cancer usually develops late in life, although the polyps typically begin developing at puberty. The abbreviation for FAP is FAP can be inherited from an autosomal dominant gene. Although most people with FAP are affected by the genetic mutation, expression can differ from one person to another. FAP results from mutations in the APC Adenomatous Polyposis Coli gene. It is located on chromosome 5. In order to avoid cancer, it is sometimes necessary to have the colon removed. An autosomal recessive form of familial Adenomatous Polyposis is an easier type. It is called autosomal recessive family adenomatous polyposis. This mutation is in another gene, MUTYH. Familial polyposis is also known as familial adenomatous polyposis and familial coli.
(in Medical Dictionary)