Elbow Erosions

A pruritic, scaly rash appeared on this 42-year-old man's elbows, knees, lower back, and buttocks. Can you ID?

A 42-year-old man presents with a pruritic rash characterized by pink, scaly plaques with a few crusted erosions on the elbows (Figure) knees, lower back, and buttocks. Review of systems was negative, although there was a strong positive family history of celiac disease. He took no medications and was otherwise healthy.


Which of the following do you suspect?

A. Dermatitis herpetiformis
B. Bullous pemphigoid
C. Granuloma annulare
D. Granulomatous dermatitis
E. Palisaded neutrophilic dermatitis
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