• N Niitsu, M Nakayama, M Kato, and M Umeda.
• First Department of Internal Medicine, Toho University School of Medicine.
• Rinsho Ketsueki. 1997 Jul 1; 38 (7): 587-92.

AbstractAutoimmune hemolytic anemia (AIHA) complicated with non-Hodgkin's lymphoma (NHL) is not unusual. Two cases of NHL associated with cold agglutinin disease were reported. Case 1: A 38-year-old man had diffuse medium-sized cell NHL diagnosed by cervical lymph node biopsy. The Hb was 7.6 g/dl with a cold agglutinin titer of 32,768, and the IgM level was 890 mg/dl (I-specific), so cold agglutinin disease (CAD) was suspected. After administration of COP-BLAM therapy, complete remission (CR) was achieved along with a decrease in the cold agglutinin titer and improvement of anemia. Case 2: A 68-year-old woman had follicular mixed NHL diagnosed by inguinal lymph node biopsy. The Hb was 8.2 g/dl with a cold agglutinin titer of 51,200, and an IgM level of 920 mg/dl (I specific), thus concurrent CAD was suspected. Biweekly COP-BLAM therapy was administered and CR was achieved along with a decrease in the cold agglutinin titer and improvement of her anemia. In both patients, the cold agglutinin titer decreased after CR was achieved suggesting that production of anti-erythrocyte autoantibody was due to disturbance of the antibody system by NHL.

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