title: [Collision tumor of the stomach].
abstract: In a gastric neoplasm, malignant lymphoma is a relatively rare disease and a malignant lymphoma complicated by a carcinoma is very rarely found in the same stomach. As far as we could determine in a search of the literature, the coexistence of a gastric cancer and a malignant lymphoma was found in only 30 cases including our case and collision was seen in 10 of these. Our report concerns a recent case of malignant gastric lymphoma colliding with II c early gastric cancer, and is followed by a discussion. The patient, a man of 68, had complained of epigastralgia. The case was diagnosed as a gastric malignant lymphoma after an upper gastrointestinal roentgenogram and endoscopy. A biopsy revealed a torous malignant lymphoma (diffuse medium-sized cell type) and an II c early gastric cancer (tub 2) and suggested the collision between them.
authors.affiliation: Dept. of Gastroenterology, Osaka National Minami Hospital.
authors.forename: T
authors.initials: T
authors.lastname: Higashi
authors.forename: K
authors.initials: K
authors.lastname: Tamura
authors.forename: K
authors.initials: K
authors.lastname: Fukui
authors.forename: A
authors.initials: A
authors.lastname: Kurata
mesh_terms: D000368:Aged; D005743:Gastrectomy; D006801:Humans; D008207:Lymphatic Metastasis; D008223:Lymphoma / Q000473:pathology* / Q000601:surgery; D008297:Male; D013274:Stomach Neoplasms / Q000473:pathology* / Q000601:surgery