PMID: 2107347Jan 1, 1990Paper

Diverse hemostatic abnormalities in a patient with biclonal multiple myeloma

[Rinshō ketsueki] The Japanese journal of clinical hematology
I KomiyaT Nomura

Abstract

A 58-year-old female was referred to us because of M-proteinemia and anemia. Bone marrow showed normal cellularity with 14.8% of atypical plasma cells. Serum electrophoresis on cellulose acetate membrane revealed a single M-peak (56.9%). Immunoelectrophoresis showed large M-bows against anti-IgA and anti-lambda, together with small M-bows against anti-IgG and anti-kappa of the same electrophoretic mobility. In the urine, lambda type Bence Jones protein was found. The skull X-ray showed multiple punched out lesions. APTT was 61 seconds, fibrinogen 118 mg/dl, factor VIII clotting activity 25% with normal factor VIII related antigen, and factor IX clotting activity 38%. Circulating anticoagulants were not detected. These hemostatic abnormalities were thought ascribable to the interference of clotting activities by paraproteins. On the 33rd hospital day, she suffered from intracerebral hemorrhage, which was possibly due to these hemostatic abnormalities.

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