title: Multiple primary carcinoma of the gastrointestinal tract.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D003110:Colonic Neoplasms / Q000473:pathology; D005260:Female; D005770:Gastrointestinal Neoplasms; D006801:Humans; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D012811:Sigmoid Neoplasms / Q000473:pathology; D013274:Stomach Neoplasms / Q000473:pathology