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A Scaly Rash


An 11-year-old boy breaks out quite suddenly with a rash of papulosquamous lesions with a silvery scale. Can you Dx?

An 11-year-old boy presents with a rash of tear-drop shaped scales spread symmetrically on his trunk and proximal extremities. The scale is adherent and attempts to scrape the lesions result in punctate bleeding. Other than a case of strep throat last week for which he was treated with antibiotics, he is otherwise in good health.

What is your diagnosis?

A. Seborrheic dermatitis
B. Onychomycosis
C. Guttate psoriasis
D. Nummular eczema
E. Lichen planus
F. Lichen simplex chronicus
G. Mycosis fungoides
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