title: Colonoscopic diagnosis of an appendiceal polyp with carcinoma in situ.
abstract: A pedunculated appendiceal polyp containing adenocarcinoma in situ was diagnosed preoperatively by colonoscopy. I emphasize the role of colonoscopy in examining as well as identifying the appendiceal orifice.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D001063:Appendiceal Neoplasms / Q000175:diagnosis*; D002278:Carcinoma in Situ / Q000175:diagnosis*; D003113:Colonoscopy; D005260:Female; D006801:Humans; D007417:Intestinal Polyps / Q000175:diagnosis*; D008875:Middle Aged