Pityriasis rosea: An update with a critical appraisal of its possible herpesviral etiology

摘要: Pityriasis rosea is an acute, self-healing exanthem characterized by oval erythematous-squamous lesions of the trunk and limbs, that usually spares face, scalp, palms, soles. Constitutional symptoms, which have character true prodromes; clinical features, resemble those known exanthems; many epidemiologic data all suggest infectious origin. A host agents been incriminated, but, recently, human herpesvirus 6 7 extensively studied. The goal this review to outline epidemiologic, clinical, histologic, ultrastructural features pityriasis rosea, but mainly stress its possible nature. In addition, clues added help reader go through complex subtleties virologic investigation.