Diseases, Conditions and Tests
The RxList disease and condition listing contains explanations of many medical conditions and tests. Disease articles are written by U.S. Board Certified Physicians. To use the listing, browse the terms by selecting a letter.
Psoriasis is a noncontagious skin condition that produces red papules that merge together into plaques of thickened, scaling skin. The dry flakes of skin scales are thought to result from the excessively rapid proliferation of skin cells that is triggered by abnormal lymphocytes. More...
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