Prepared by Mark Miller, MD, Fellow, Department of Medicine, Division of Infectious Diseases, Los Angeles County/University of Southern California Medical Center, Los Angeles, Calif

A 53-year-old nursing-home resident was hospitalized with acute dermatitis of 2 weeks’ duration. The erythematous, scaly, flaky rash was most prominent on the face (Figure), hands, legs, and feet. The lesions were not painful or pruritic. His medical history included late-stage AIDS, thrush, and dementia. Several other residents of his nursing home had a similar, albeit pruritic, rash, suggestive of an outbreak.

What’s the Diagnosis?

• Poison oak contact dermatitis
• Seborrheic dermatitis
• Crusted scabies
• Facial cellulitis