Pityriasis rosea (PR) is an acute inflammatory skin disorder characterized by erythematous scaling papules and macules. PR lesions are most commonly distributed over the trunk and proximal extremities ...

This patient had pityriasis rosea, an acute inflammatory dermatosis of unknown etiology. Viruses, particularly human herpesvirus 6 and 7, have been suggested as the causative pathogen, but study ...

Classically, pityriasis rosea begins as an erythematous, scaly patch on the trunk, known as a herald patch. This large lesion is commonly 2–10 cm in diameter, ovoid, erythematous and slightly raised, ...