Adenosquamous and squamous cell carcinoma of the colon.
Adenosquamous and squamous cell carcinomas of the colon are uncommon tumors; only 28 have been previously reported. In a review of 5,969 colonic adenocarcinomas (excluding anorectal cancers). I identified six carcinomas with squamous features. This is a frequency of 0.1% relative to the incidence of "usual" adenocarcinomas of the colon. An association of squamous neoplasia in the colon and chronic ulcerative colitis is noted.
D000230:Adenocarcinoma / Q000473:pathology*; D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002430:Cecal Neoplasms / Q000473:pathology; D003093:Colitis, Ulcerative / Q000150:complications; D003110:Colonic Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D011127:Polyps / Q000473:pathology; D012811:Sigmoid Neoplasms / Q000473:pathology