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Psoriasis — ABFM Board MCQ

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EasyDermatologyPsoriasisABFM Board

A 35-year-old man has well-demarcated erythematous plaques with silvery scale on the elbows and knees. He also reports nail pitting. Which of the following is the most likely diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: CPsoriasis

Extensor plaques with silvery scale and nail pitting are classic for psoriasis.

Reference: American Family Physician clinical reviews and AAFP guidance: https://www.aafp.org/pubs/afp.html