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Herald Patch as the Only Evidence of Pityriasis Rosea: Clinical, Laboratory and Pathogenetic Features
- Francesco Drago,
- Astrid Herzum,
- Serena Varesano,
- Gaetano Serviddio,
- Francesco Broccolo and
- Giulia Ciccarese
Pityriasis rosea (PR) is a self-limited exanthem associated with the endogenous systemic reactivation of human herpesvirus (HHV)-6 and HHV-7. The disease typically begins with a single erythematous patch on the trunk (herald patch), followed by a sec...