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Diseases

Genetic and Rare Diseases Information Center (GARD)

Lichen planus pigmentosus


Other Names for this Disease
  • Lichen planus pigmentosa
  • Lichen planus pigmentosus inversus
  • LP pigmentosa
  • LP pigmentosus
Related Diseases
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Overview

Lichen planus pigmentosus (LPP) is a rare form of lichen planus. It is characterized by oval or irregularly shaped brown to gray-brown macules and patches on the skin. Areas that are exposed to sun such as the forehead, temples and neck are most commonly affected. However, the macules and patches may also develop on the trunk or in places where two areas of skin touch or rub together (i.e. the armpit, groin, etc). LPP is a chronic, relapsing condition with periods of exacerbations (worsening symptoms) separated by periods of remission (a decrease in or disappearance of symptoms). Although the exact underlying cause of LPP is unknown, studies suggest that UV light, viral infections, and certain topical (applied to the skin) agents such as mustard oil and amla oil, may trigger the condition. Treatment for LPP is symptomatic.[1][2][3]
Last updated: 4/9/2015

References

  1. Neelam Vashi, MD; Roopal Kundu, MD. Approach to the patient with hyperpigmentation disorders. UpToDate. January 2015; Accessed 4/9/2015.
  2. Arnold S. & Cooper S. Lichen planus pigmentosus. Orphanet. May 2011; http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&Expert=254463. Accessed 6/13/2012.
  3. Lichen planus. DermNet NZ. March 2015; http://dermnetnz.org/scaly/lichen-planus.html.
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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.

In Depth Information

  • Medscape Reference provides information on this topic. You may need to register to view the medical textbook, but registration is free.
  • 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 Lichen planus pigmentosus. Click on the link to view a sample search on this topic.
Other Names for this Disease
  • Lichen planus pigmentosa
  • Lichen planus pigmentosus inversus
  • LP pigmentosa
  • LP pigmentosus
Related Diseases
See Disclaimer regarding information on this site. Some links on this page may take you to organizations outside of the National Institutes of Health.