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  • Title: [The antiphospholipid syndrome during chronic lymphatic leukemia. An association with anti-factor VIII antibodies].
    Author: Ghirarduzzi A, Silingardi M, D'Incà M, Tincani E.
    Journal: Ann Ital Med Int; 1999; 14(1):46-50. PubMed ID: 10528424.
    Abstract:
    Activated partial thromboplastin time may be prolonged as the result of either of two different autoimmune complications of chronic lymphocytic leukemia: the development of antiphospholipid antibodies, such as lupus anticoagulant or anticardiolipin antibodies, or anti-factor VIII inhibitors, such as acquired hemophilia A. In the rare simultaneous occurrence of both inhibitors, differential diagnosis of a prolonged activated partial thromboplastin time poses a number of problems during laboratory work-up, due to mutual interference of the commonly performed tests. Only careful clinical follow-up can disclose the significance of the laboratory findings. We report the case of concurrent antiphospholipid antibodies (lupus anticoagulant positivity, anticardiolipin antibodies; IgM 3880 MPL/mL and IgG 265 GPL/mL) and anti-factor VIII antibodies (46.8 Bethesda Units) in a patient with chronic B-cell lymphocytic leukemia who had prolonged activated partial thromboplastin time (78.8 s). The relationship between lymphoproliferative and antiphospholipid syndrome, laboratory work-up in the case of the association of antiphospholipid and anti-factor VIII antibodies, and related problems that occur during clinical management of the patient are also discussed.
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