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Psoriasis is typically diagnosed after the doctor or health-care professional does a physical exam. The doctor generally can recognize psoriasis by observing the appearance of the diseased skin.
Skin biopsies can support the diagnosis of plaque psoriasis in difficult cases although they are not always definitive. There may be a lot of overlap between the biopsy appearance of a plaque of psoriasis and that of a plaque of lichen simplex chronicus, which occurs when skin is chronically rubbed or scratched for any reason.
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Psoriasis Home Remedies
Medically Reviewed by a Doctor on 8/15/2014
Jeffrey J. Meffert, MD
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