Fast Five Quiz: What Do You Know About Psoriasis?

Dirk M Elston, MD; William James, MD

Disclosures

January 25, 2023

Guttate psoriasis typically presents as small salmon-pink papules, 1-10 mm in diameter, predominately on the trunk; the lesions may be scaly. It frequently appears suddenly, 2-3 weeks after an upper respiratory infection with group A beta-hemolytic streptococci.

Inverse psoriasis typically occurs on the flexural surfaces, armpit, groin, under the breast, and in the skin folds. It is characterized by smooth, inflamed lesions without scaling due to the moist nature of the area where this type of psoriasis is located.

Pustular psoriasis usually presents as sterile pustules appearing on the palms and soles or diffusely over the body.

Erythrodermic psoriasis usually presents as generalized erythema, pain, itching, and fine scaling.

Learn more about the presentation of psoriasis.

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