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  • Title: [Primary diffuse large B-cell lymphoma of the bone marrow complicated with autoimmune hemolytic anemia and erythroid hypoplasia].
    Author: Sumi M, Ichikawa N, Shimizu I, Yotsumoto M, Ueno M, Kobayashi H.
    Journal: Rinsho Ketsueki; 2007 Jul; 48(7):571-5. PubMed ID: 17695307.
    Abstract:
    A 75-year-old woman was admitted for general fatigue. Diagnostic investigations showed no lymphadenopathy or hepatosplenomegaly. Laboratory examinations revealed severe anemia and an undetectable level of haptoglobin in the peripheral blood. A direct Coombs test was positive. Bone marrow examination showed abnormal, large, CD20-positive lymphocytes and erythroid hypoplasia. Accordingly, a diagnosis of primary diffuse large B-cell lymphoma (DLBCL) of the bone marrow with autoimmune hemolytic anemia (AIHA) and erythroid hypoplasia was made. The patient was treated with prednisolone and 3 courses of rituximab, followed by 6 courses of R-CHOP. AIHA and erythroid hypoplasia subsided after prednisolone and 3 courses of rituximab. Treatment with 6 courses of R-CHOP resulted in complete remission. Isolated bone marrow disease as a presenting feature of DLBCL is very rare. Although malignant lymphomas are often associated with immunologic disorders, this is the first report of diffuse large B-cell lymphoma with isolated bone marrow disease and simultaneous autoimmune hemolytic anemia and erythroid hypoplasia. This case provides valuable information concerning the pathophysiology of an immunologic anomaly with malignant lymphoma.
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