Leukocytopenia and thrombocytopenia preceded by human parvovirus B19 infection: report of three adult cases

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  • ヒトパルボウイルスB19感染により白血球，血小板減少を来した3成人例
  • 症例 ヒトパルボウイルスB19感染により白血球,血小板減少を来した3成人例
  • ショウレイ ヒトパルボウイルス B19 カンセン ニ ヨリ ハッケッキュウ ケッショウバン ゲンショウ オ キタシタ 3 セイジンレイ

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In Saiki City, Oita, Japan, erythema infectiosum in children has been prevalent from June, 1999 to the time of writing (January, 2000). We present three adult cases of parvovirus B19-associated leukocytopenia and thrombocytopenia that developed during this epidemic. Between June and November, 1999, a 32-year-old woman, a 38-year-old woman, and a 63-year-old man were referred to our hospital for treatment of leukocytopenia and thrombocytopenia. All complained of common cold-like symptoms. Their WBC counts (percentage of neutrophils) were 1,000/μl (70%), 1,900/μl (40%) and 1,680/μl (40%), their hemoglobin levels 9.4 g/dl, 9.8 g/dl and 14.9 g/dl, and their platelet counts 10.8×104/μl, 6.9×104/μl and 4.5×104/μl, respectively. The diagnosis of parvovirus B19 infection was documented by the presence of B19-specific IgM antibodies or serum positivity for viral DNA. In two cases, the leukocytopenia and thrombocytopenia resolved gradually. In the other case, leukocytopenia, thrombocytopenia and B19 infection persisted for more than two months. These cases suggest that parvovirus B19 may be a common cause of leukocytopenia and thrombocytopenia even in adult patients without hematological disorders (erythropoietic stress), and that testing for parvovirus infection is justified in such patients, even if anemia is slight, especially when erythema infectiosum is prevalent.

Journal

  • Rinsho Ketsueki

    Rinsho Ketsueki 41 (7), 596-600, 2000

    The Japanese Society of Hematology

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