The discoid lupus erythematosus - A form of the chronic autoimmune disorder lupus erythematosus that is confined to the skin. It causes a red, itchy, scaly rash to appear, particularly on the face and scalp, behind the ears, and on any parts of the body that are exposed to sunlight.
The disorder most commonly occurs in women between the ages of 25 and 45, and tends to run in families. Over a period of several years, discoid lupus erythematosus may subside and recur repeatedly with different degrees of severity.
Diagnosis is by a skin biopsy, and treatment is with topical corticosteroid drugs or drugs such as hydroxychloroquine.
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