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Pityriasis rubra pilaris

Other Names for this Disease
  • Familial pityriasis rubra pilaris
  • Pityriasis rubra pilaris--familial type
  • PRP
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Pityriasis rubra pilaris (PRP) refers to a group of skin conditions that cause constant inflammation and scaling of the skin.[1] Affected people have reddish-orange colored patches; they may occur everywhere on the body or only on certain areas.[2] There are several types of PRP, which are classified based on age of onset, body areas affected, and whether other associated conditions are present.[2][3] PRP is usually sporadic (occurring randomly) but some forms may be inherited.[2]
Last updated: 3/10/2014


  1. Pityriasis rubra pilaris. MedlinePlus. April 2009; Accessed 6/30/2011.
  2. Vanessa Ngan. Pityriasis rubra pilaris. DermNet NZ. December 29, 2013; Accessed 3/10/2014.
  3. Shenefelt PD. Pityriasis Rubra Pilaris. eMedicine. May 2010; Accessed 6/30/2011.
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Basic Information

  • DermNet NZ is an online resource about skin diseases developed by the New Zealand Dermatological Society Incorporated. DermNet NZ provides information about this condition.
  • Genetics Home Reference (GHR) contains information on Pityriasis rubra pilaris. This website is maintained by the National Library of Medicine.
  • The Merck Manuals Online Medical Library provides information on this condition. Click on the link to view the information.

In Depth Information

  • Medscape Reference provides information on this topic. Click on the link to view this information. You may need to register to view the medical textbook, but registration is free.
  • The Online Mendelian Inheritance in Man (OMIM) is an catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs.  Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Pityriasis rubra pilaris. Click on the link to view a sample search on this topic.