Wednesday, February 18, 2009


A 25 year old Caucasian presents with the rash shown above. The lesions are symmetric, found on the scalp, extensor elbows, knees, and back. The patient is a smoker, obese, and drinks alcohol.

Challenge: This is a classic presentation of what disease?

Image shown under GNU Free Documentation License


deardoc said...


Alex said...


shabnam said... it?

Craig Chen said...

Excellent! That must have been too easy.

Psoriasis classically presents with chronic sharply demarcated erythematous papules and plaques with a silver scale, presenting bimodally in ages 20-30 and 50-60. Patients may also have pitting of the nails and involvement of the intertriginous spaces and ear canal. The plaques are typically asymptomatic but may be pruritic. Psoriasis also has many atypical presentations.

Sources: UpToDate; Wikipedia.