Juvenile polyp with intramucosal carcinoma.
Intramucosal carcinoma arising in an otherwise typical juvenile polyp is reported. Adenomatous change and carcinoma in situ have been previously documented in patients with the multiple juvenile polyposis syndrome. The syndrome was not present in this case. Although rare, juvenile polyps (both in solitary and multiple forms) are a potential site of malignant change.
D000328:Adult; D002278:Carcinoma in Situ / Q000209:etiology / Q000473:pathology*; D003106:Colon / Q000473:pathology; D003110:Colonic Neoplasms / Q000473:pathology*; D003111:Colonic Polyps / Q000150:complications / Q000473:pathology*; D006222:Hamartoma / Q000473:pathology*; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology*; D008297:Male