Psoriatic plaques tend to have a high degree of uniformity with few morphologic differences between the two sides. Fissuring within psoriatic plaques can occur when lesions are present over joint lines or on the palms and soles. They are raised and easily palpable due to the thickened epidermis, expanded dermal vascular compartment, and infiltrate of neutrophils and lymphocytes that are characteristic of the disease. Psoriatic plaques are symmetrically distributed over the body.
Learn more about the signs and symptoms of plaque psoriasis.
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Cite this: Chris G. Adigun. Fast Five Quiz: Plaque Psoriasis Presentation and Diagnosis - Medscape - Jul 09, 2021.