title: Extramedullary plasmacytoma of the jejunum.
abstract: A case of extramedullary plasmacytoma (EMP) of the jejunum, an uncommon neoplasia, is reported. A 56-year-old Japanese woman who experienced intermittent upper abdominal pain and weight loss had a large movable mass in the upper abdomen. The mass was hypervascular in an angiographic study and positive for gallium-67 citrate scintigraphy. Immunoelectrophoresis showed the presence of an M-component of immunoglobulin (Ig) A-lambda in the serum. It was identified as an EMP immunohistochemically positive for IgA-lambda. This M-component disappeared after resection and chemotherapy. The clinical features of this rare neoplastic disorder are discussed.
authors.affiliation: First Department of Internal Medicine, Miyazaki Medical College.
authors.forename: T
authors.initials: T
authors.lastname: Tsuruda
authors.forename: T
authors.initials: T
authors.lastname: Ohashi
authors.forename: S
authors.initials: S
authors.lastname: Uezono
authors.forename: J
authors.initials: J
authors.lastname: Kato
authors.forename: Y
authors.initials: Y
authors.lastname: Nagatomo
authors.forename: J
authors.initials: J
authors.lastname: Sakata
authors.forename: Y
authors.initials: Y
authors.lastname: Haraguchi
authors.forename: T
authors.initials: T
authors.lastname: Eto
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D005260:Female; D006801:Humans; D007070:Immunoglobulin A / Q000097:blood; D007146:Immunoglobulin lambda-Chains / Q000097:blood; D007580:Jejunal Neoplasms / Q000097:blood / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery; D008558:Melphalan / Q000008:administration & dosage; D008875:Middle Aged; D010266:Paraproteins / Q000032:analysis; D010954:Plasmacytoma / Q000097:blood / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery; D011239:Prednisolone / Q000008:administration & dosage
chemical_list: D007070:Immunoglobulin A; D007146:Immunoglobulin lambda-Chains; D010266:Paraproteins; D011239:Prednisolone; D008558:Melphalan