Case 1:

A 44-year-old man seeks evaluation of itchy spots of 2 years’ duration on both forearms near the elbow. The condition failed to respond to topical corticosteroids prescribed by other physicians. Skin biopsy results were inconclusive; they showed only mild inflammation.

What do you suspect?

A. Contact dermatitis.
B. Psoriasis.
C. Dermatitis herpetiformis.
D. Folliculitis.
E. Factitial dermatitis.

(Answer on next page.)