title: Colorectal carcinoma in patients less than 40 years of age: pathology and prognosis.
mesh_terms: D000293:Adolescent; D000328:Adult; D003110:Colonic Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011379:Prognosis; D012004:Rectal Neoplasms / Q000473:pathology*; D012189:Retrospective Studies