ⓘ Pityriasis rubra pilaris

                                     

ⓘ Lichen ruber pilaris

Pityriasis rubra pilaris refers to a group of chronic disorders characterized by reddish orange, scaling plaques and keratotic follicular papules. Symptoms may include reddish-orange patches on the skin, severe flaking, uncomfortable itching, thickening of the skin on the feet and hands, and thickened bumps around hair follicles. For some, early symptoms may also include generalized swelling of the legs, feet and other parts of the body. PRP has a varied clinical progression and a varied rate of improvement. There is currently no known cause or cure for PRP.

It was first described by Marie Guillaume Alphonse Devergie in 1856, and the condition is also known as the disease Devergies.