title: Primary ileal plasmacytoma arising in mixed low- and high-grade B-cell lymphoma of mucosa-associated lymphoid tissue type.
abstract: We report an extremely rare case of primary ileal plasmacytoma accompanied by mixed low- and high-grade B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) type. The radiographic and macroscopic features of the tumor were characterized by two constricting lesions in the ileum. Histologic examination of the resected specimen showed that one constrictive lesion was plasmacytoma and the other MALT lymphoma was low and high grade. The plasmacytoma seemed to have differentiated from the MALT lymphoma.
authors.affiliation: Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Matsumoto
authors.forename: T
authors.initials: T
authors.lastname: Matsumoto
authors.forename: S
authors.initials: S
authors.lastname: Nakamura
authors.forename: A
authors.initials: A
authors.lastname: Kawasaki
authors.forename: M
authors.initials: M
authors.lastname: Aso
authors.forename: K
authors.initials: K
authors.lastname: Aoyagi
authors.forename: S
authors.initials: S
authors.lastname: Sadoshima
authors.forename: K
authors.initials: K
authors.lastname: Onoyama
authors.forename: M
authors.initials: M
authors.lastname: Fujishima
mesh_terms: D000328:Adult; D006801:Humans; D007078:Ileal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging / Q000473:pathology*; D008228:Lymphoma, Non-Hodgkin / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000000981:diagnostic imaging / Q000473:pathology*; D010954:Plasmacytoma / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography