title: Collision tumor of the stomach--a case report.
abstract: A case of synchronous occurrence of a primary ulcerating adenocarcinoma and primary low grade malignant lymphoma of the stomach is reported. Histologically, main portion of both tumors are separated by an intermediate transitional zone. Regional lymph nodes are involved by both tumors.
authors.forename: B C
authors.initials: BC
authors.lastname: Teh
authors.forename: S
authors.initials: S
authors.lastname: Hsueh
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology* / Q000628:therapy; D000368:Aged; D006801:Humans; D008223:Lymphoma / Q000473:pathology* / Q000628:therapy; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology* / Q000628:therapy; D013274:Stomach Neoplasms / Q000473:pathology* / Q000628:therapy