For a few months, a 51-year-old woman has had an asymptomatic rash on her proximal thighs. She claims to have no other rashes and denies any exposure history.
What are you looking at here?
A. Tinea corporis.
B. Erythema multiforme.
C. Lichen planus.
D. Erythema annulare centrifugum.
E. Nummular eczema.
Bonus question: Is there any diagnostic procedure you would perform?
Double bonus question: What other part of the body would you check
1. Zaias N, Rebell G. The successful treatment of Trichophyton rubrum nail bed (distal subungual) onychomycosis with intermittent pulse-dosed terbinafine. Arch Dermatol. 2004;140:691-695.