Small primary adenocarcinomas of the colon and rectum.
D000230:Adenocarcinoma / Q000473:pathology*; D003110:Colonic Neoplasms; D006801:Humans; D012004:Rectal Neoplasms; D012007:Rectum
ADENOCARCINOMA/pathology; COLON/neoplasms; RECTUM/neoplasms