Gastric polyps in familial polyposis coli.

Familial polyposis coli has been considered a disease in which polyps are confined to the colon and rectum. The authors recently saw 3 cases in which either adenomatous or hyperplastic polyps were also present in the stomach and duodenum. The polyps were detected only by endoscopy or air-contrast radiographic examination. These cases and other recent studies indicate that gastric and duodenal polyps are more common in familial polyposis coli than previously recognized and should be considered an integral part of the syndrome.