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Pityriasis rubra pilaris

Pityriasis rubra pilaris is a skin disorder that causes constant inflammation and scaling (exfoliation) of the skin.


There are many different types of pityriasis rubra pilaris. The cause is unknown, although genetic factors may play a role.


Pityriasis rubra pilaris is a chronic skin condition in which pink, scaly patches and thick skin develop on the hands and feet.

The pink scaly areas cover much of the body. Small islands of normal skin are seen within the areas of pink, scaly skin.


Topical creams containing urea or lactic acid may help. More commonly, treatment includes pills taken by mouth such as isotretinoin, acitretin, or methotrexate.


James WD, Berger TG, Elston DM, eds. Andrews' Diseases of the Skin: Clinical Dermatology. 11th ed. Philadelphia, Pa.: Elsevier Saunders; 2011:chap 11.

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Update Date 4/13/2013

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