Relationship of chronic anorectal disease to carcinoma.
D001003:Anal Canal; D001005:Anus Neoplasms; D002277:Carcinoma; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D006801:Humans; D012004:Rectal Neoplasms; D012007:Rectum
ANUS/neoplasms; CARCINOMA, EPIDERMOID/pathology; RECTUM/neoplasms