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Separation of Immune Cell Subpopulations in Peripheral Blood Samples from Children with Infectious Mononucleosis
Published on: September 7, 2022
Plasmablastic extramedullary plasmacytoma associated with Epstein-Barr virus arising in an immunocompetent patient
Shugo Sasaki1, Koji Hashimoto, Shin-ichi Nakatsuka
1Department of Internal Medicine, Kansai Rosai Hospital, Japan. shugosasaki@yahoo.co.jp
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.

