Primary Extramedullary Plasmacytoma of the Lung with Production of M-protein : a case report

We describe here a rare case of primary extramedullary plasmacytoma of the lung in an 86-year-old Japanese man. Immunohistochemical staining of biopsy specimens for IgG-kappa was positive, and serum immunoelectrophoresis showed monoclonal IgG-kappa. There was no evidence of the presence of multiple myeloma. Chemotherapy was given, but tumor size did not decrease significantly. (Japanese Journal of Lung Cancer 40 (7): 783-786, 2000)

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