期刊
JOURNAL OF CLINICAL VIROLOGY
卷 20, 期 3, 页码 173-178出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1386-6532(00)00179-7
关键词
chronic autoimmune neutropenia/thrombocytopenia; parvovirus B19 infection
类别
Objective: We report an Ii-year-old boy presenting with splenomegaly, chronic thrombocytopenia and concordant neutropenia. Results: In contrast to autoantibodies against platelets, there were no detectable neutrophil-specific autoantibodies present in this patient. Extensive serologic investigations revealed increased IgM- and IgG-antibody titers against parvovirus B19. A nested polymerase chain reaction (PCR) showed parvovirus B19-specific sequences in the patient's bone-marrow cells but not in the serum. Specific antibodies against the structural proteins VP1 and VP2 in addition to those against non-structural protein NS1 of parvovirus B19 were detected by Western blot analysis. Thrombocytopenia and neutropenia responded to immunosuppressive therapy and subsequent splenectomy, the latter being necessary due to severe side-effects of steroid medication. Conclusion: Autoimmune thrombocytopenia/neutropenia may have been triggered and/or sustained by a chronic parvovirus B19 infection. Patients with this very rare disorder should be screened for this virus. (C) 2001 Elsevier Science B.V. All rights reserved.
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