Dermatology Quiz

Prepared by Kevin Holloway, MD, Resident, Joshua E. Lane, MD, Clinical Assistant Professor, and David E. Kent, MD, Clinical Assistant Professor, Department of Internal Medicine,

Mercer University School of Medicine, Macon, Ga

A 20-year-old woman presented with a recurrent rash on her torso (Figure). She could not recall any blunt trauma, but she had a similar rash 2 years ago in the same location. She recently began taking trimethoprim/ sulfamethoxazole for acne vulgaris and denied any known medication allergies.

What's the Diagnosis?

• Fixed drug eruption
• Hematoma
• Arthropod assault
• Erythema chronicum migrans

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