Fast Five Quiz: Plaque Psoriasis Presentation and Diagnosis

Chris G. Adigun, MD

Disclosures

May 21, 2020

The physical examination of a patient with plaque psoriasis may reveal symmetrical lesions on the scalp, trunk, buttocks, and limbs as well as the extensor surfaces of the knees, elbows, and genitals. Additionally, plaque psoriasis may present as well-demarcated round to oval-shaped lesions ranging in size from 1 cm to several centimeters.

Widespread erythema covering nearly the entire body with variable amounts of scaling may be seen with erythrodermic psoriasis, not plaque psoriasis, and is considered a life-threatening emergency, as these patients are at risk for hemodynamic instability.

Dewdrop–shaped, salmon-colored papules with fine scale are characteristic of guttate psoriasis, not plaque psoriasis.

Learn more about the signs and symptoms of plaque psoriasis.

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