title: Colliding malignant lymphoma and adenocarcinoma of the stomach: case report.
abstract: We report a case of malignant lymphoma presenting as the superior vena cava syndrome. This case is very interesting since both adenocarcinoma mucocellulare scirrhosum, Borrman type IV, and lymphoma were present in the stomach, forming colliding neoplasms. Rather than systemically disseminated, the lymphoma cells were localized in the stomach, the intestine, a few perigastric lymph nodes and in a mediastinal mass, which may have constituted a neoplastic thymus invaded by lymphoma cells from the stomach. The unique occurrence of the histological combination as gastric colliding neoplasms is discussed.
authors.affiliation: Department of Internal Medicine, Tsuchiura Kyodo Hospital, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Koike
authors.forename: T
authors.initials: T
authors.lastname: Ishido
authors.forename: N
authors.initials: N
authors.lastname: Takiguchi
authors.forename: H
authors.initials: H
authors.lastname: Tachi
authors.forename: J
authors.initials: J
authors.lastname: Tazawa
authors.forename: M
authors.initials: M
authors.lastname: Nishimura
authors.forename: K
authors.initials: K
authors.lastname: Kawada
authors.forename: H
authors.initials: H
authors.lastname: Fujiwara
mesh_terms: D000230:Adenocarcinoma / Q000150:complications / Q000473:pathology*; D000328:Adult; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000150:complications / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000150:complications / Q000473:pathology*; D013274:Stomach Neoplasms / Q000150:complications / Q000473:pathology*; D013479:Superior Vena Cava Syndrome / Q000209:etiology