title: Extramedullary plasmacytoma of skeletal muscle. A case report with immunocytochemistry and ultrastructural study.
abstract: An uncommon origin of a rare tumor is described in a 60-year-old white man. Extramedullary plasmacytoma was localized in the left biceps muscle. Tumor immunostaining corresponded with immunocharacterization of the atypical midgamma band on electrophoresis or the serum monoclonal M protein of IgG kappa. The latter disappeared 6 months after the operation. The diagnosis was confirmed ultrastructurally.
authors.affiliation: Department of Histopathology, Wexham Park Hospital, Slough, England.
authors.forename: A B
authors.initials: AB
authors.lastname: Akosa
authors.forename: M H
authors.initials: MH
authors.lastname: Ali
mesh_terms: D001132:Arm; D006801:Humans; D007145:Immunoglobulin kappa-Chains / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009135:Muscular Diseases / Q000378:metabolism / Q000473:pathology*; D010266:Paraproteins / Q000032:analysis; D010954:Plasmacytoma / Q000032:analysis / Q000648:ultrastructure*
chemical_list: D007145:Immunoglobulin kappa-Chains; D010266:Paraproteins