Dermoscopy Findings in Japanese Spotted Fever

  • Otsuka Atsushi
    Department of Dermatology, Shimane Prefectural Central Hospital Department of Dermatology, Kyoto University Graduate School of Medicine
  • Takagaki Kenji
    Department of Dermatology, Shimane Prefectural Central Hospital
  • Tanizaki Hideaki
    Department of Dermatology, Shimane Prefectural Central Hospital Department of Dermatology, Kyoto University Graduate School of Medicine
  • Tabara Kenji
    Shimane Prefectural Institute of Public Health and Environmental Science

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Other Title
  • 日本紅斑熱におけるダーモスコピー所見の解析
  • ニホンコウ ハン ネツ ニ オケル ダーモスコピー ショケン ノ カイセキ

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Abstract

Ten cases with from five to thirty lesions each of Japanese spotted fever (JSF) were observed by dermoscopy. Arborizing vessels, erythema, purpura, milky-red globules, and whitish-veil were noticed in the exanthema. Erythema was found in all cases. Arborizing vessels and milky-red globules were observed in nine cases, and purpura was demonstrated in seven. Whitish-veil was noticed in two cases. Minocycline is an effective treatment for JSF, while β-lactams and penicillin are ineffective. Therefore an early diagnosis is very important. Based on these findings, we concluded that dermoscopy could be a useful tool for the early diagnosis of JSF.

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