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Lichen Planus

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Definition

Lichen planus is a disease in which there is an itchy, swollen rash on the skin or in the mouth.

Symptoms

  • Mouth lesions
    • Tender or painful (mild cases may have no discomfort)
    • Located on the sides of the tongue or the inside of the cheek
    • Occasionally located on the gums
    • Poorly defined area of blue-white spots or "pimples"
    • Lines of lesions that form a lacy-looking network
    • Gradual increase in size of the affected area
    • Lesions occasionally form painful ulcers
  • Skin lesions:
    • Usually located on the inner wrist, legs, torso, or genitals
    • Itchy
    • Symmetrical
    • Single lesion or clusters of lesions, often at sites of skin trauma
    • Papule 2 - 4 cm in size
    • Papules clustered into a large, flat-topped lesion
    • Lesions have distinct, sharp borders
    • Possibly covered with fine white streaks or scratch marks called Wickham's striae
    • Shiny or scaly appearance
    • Dark colored -- reddish-purple (skin) or gray-white (mouth)
    • Possibility of developing blisters or ulcers

Other symptoms include:

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