Thomas RuzickaHead of the Department of Dermatology and Allergology, Ludwig-Maximilian-University, Munich, Germany
Published: 30 August 2010
Pityriasis rubra pilaris (PRP) has suffered the fate of an orphan in dermatology: the disease is 500-1,000 times less common than psoriasis, virtually nothing is known about its pathophysiology, its clinical prese...