title: Plasmablastic extramedullary plasmacytoma associated with Epstein-Barr virus arising in an immunocompetent patient with multiple myeloma.
abstract: We encountered a case of plasmablastic extramedullary plasmacytoma with multiple myeloma. Histological findings revealed that the extramedullary plasmacytoma of this patient was of the plasmablastic type, which was positive for λ-stain and EBV-encoded RNA. In contrast, bone marrow aspiration demonstrated a common-type multiple myeloma, which was positive for λ-stain and negative for EBV-encoded RNA. This was a rare case of plasmablastic extramedullary plasmacytoma associated with Epstein-Barr virus arising in an immunocompetent patient with multiple myeloma.
authors: Department of Internal Medicine, Kansai Rosai Hospital, Japan. shugosasaki@yahoo.co.jp
authors: Shugo
authors: S
authors: Sasaki
authors: Koji
authors: K
authors: Hashimoto
authors: Shin-ichi
authors: S
authors: Nakatsuka
authors: Masataka
authors: M
authors: Hasegawa
authors: Tomoaki
authors: T
authors: Nakano
authors: Seiki
authors: S
authors: Nagata
authors: Yuzuru
authors: Y
authors: Kanakura
authors: Norio
authors: N
authors: Hayashi
mesh_terms: D020031:Epstein-Barr Virus Infections / Q000150:complications / Q000175:diagnosis* / Q000276:immunology; D004854:Herpesvirus 4, Human / Q000276:immunology; D006801:Humans; D007121:Immunocompetence / Q000276:immunology; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000175:diagnosis* / Q000276:immunology / Q000821:virology; D010954:Plasmacytoma / Q000175:diagnosis* / Q000276:immunology / Q000821:virology