Plaque Psoriasis (cont.)
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Plaque Psoriasis Diagnosis
Usually dermatologists and most primary-care professionals are able to diagnose classical psoriasis on the basis of the appearance of the individual lesions, the tendency to form plaques, and the distribution of those plaques on the elbows, knees, and scalp. Psoriasis can affect one or all the nails of the fingers and toes, causing changes that resemble fungal infections. Psoriasis rarely involves the lips or mouth. Occasionally, atypical psoriasis may require a biopsy (a small piece of surgically removed involved skin) be examined under the microscope to supplement the clinical evaluation. Blood tests are rarely helpful to confirm or support the diagnosis.
Medically Reviewed by a Doctor on 7/16/2015
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