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Published on: December 15, 2011
Pityriasis rosea manifesting only with a herald patch
Francesco Drago1, Serena Varesano2, Astrid Herzum3
1Dermatology Clinic, Villa Montallegro Health Clinic, Genoa.
Abstract:
Dear Editor, Pityriasis rosea (PR) is an acute, self-limited exanthematous disease associated with the endogenous systemic reactivation of human herpesvirus (HHV)-6 and/or HHV-7. The disease typically begins with a single erythematous plaque called the "herald patch" (HP), followed by a secondary generalized, symmetrical eruption. Rarely, PR can be limited only to the herald patch. The clinical and laboratory features of these atypical PR have been poorly investigated. [...].
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