THE MERCK MANUAL: The Merck Manual of Diagnosis and Therapymultimedia

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  • Lichen Simplex Chronicus
  • Lichen Simplex Chronicus

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    Lichen Simplex Chronicus

    Lichen simplex chronicus is a thickening of the skin in response to chronic rubbing or friction. It may occur in any type of chronic dermatitis or as a manifestation of an anxiety disorder.

    Image provided by Thomas Habif, MD.

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