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Syphilitic paronychia: a diagnostic challenge
  1. Orianna Marcantonio,
  2. Daniel López-Castillo,
  3. Ramon Maria Pujol,
  4. Gemma Martin-Ezquerra
  1. Dermatology, Hospital del Mar—Parc de Salut Mar, Barcelona, Spain
  1. Correspondence to Dr Orianna Marcantonio, Dermatology, Hospital del Mar—Parc de Salut Mar, Barcelona 08003, Spain; orianna_1608{at}

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A 28-year- old HIV-negative male patient presented with a 2-month history of painful inflamed nodules on the tip of his left index and right third finger (figure 1). A biopsy showed an inflammatory infiltrate with plasma cells; immunohistochemistry revealed abundant spirochetes in a mixed perivascular and intercellular pattern (figure 1). Rapid …

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  • Handling editor Anna Maria Geretti

  • Twitter @orianna_1608

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; internally peer reviewed.