An 89-year-old White woman presents to her primary care provider (PCP) with an erythematous, flat, patchy rash on both forearms that has been present for about 10 days (Figure 1). The PCP diagnoses ...

Please provide your email address to receive an email when new articles are posted on . A healthy, 19-year-old noticed some pruritic, somewhat raised erythematous lesions on her left forearm (Figure 1 ...