title: Collision tumor of the stomach. Report of two cases.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000473:pathology; D002288:Adenocarcinoma, Mucinous / Q000000981:diagnostic imaging / Q000473:pathology; D000368:Aged; D001466:Barium Sulfate; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging; D006801:Humans; D008223:Lymphoma / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D009362:Neoplasm Metastasis; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography; D013274:Stomach Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology
chemical_list: D001466:Barium Sulfate