Peeling rash on the trunk and extremities

For the past two months, a man, aged 49 years, experienced persistent nausea, vomiting, and diarrhea. Dermatology was consulted for treatment of a rash that had been present for one month. Medical history was significant for HIV and end-stage renal disease.

Physical examination revealed superficial desquamation with underlying erosions on the trunk and extremities with a "flaky paint" appearance. Erythematous ...