digestive disorders
Familial Adenomatous Polyposis
Diagnosis of Familial Adenomatous Polyposis
Colonoscopy Genetic testing Testing for hepatoblastoma in children Endoscopy is done to make the diagnosis of familial adenomatous polyposis. For people with familial adenomatous polyposis, doctors also recommend genetic testing. First-degree relatives (parents, siblings, or children) should also have genetic testing. If genetic testing is unavailable, relatives should be screened once a year with sigmoidoscopy (examination of the lower portion of the large intestine with a viewing tube) beginning at age 12. These screenings are done less frequently over time. Children of people with familial adenomatous polyposis may be given blood and sometimes imaging tests to screen for a type of liver cancer (hepatoblastoma) from birth until 5 years of age. 