Prachi Aggarwal, BA, MS2


Emergent itchy rash in a 5-year-old boy

August 19, 2019

A healthy 5-year-old boy with a 6-month history of asymptomatic 2-mm to 3-mm papules on his legs presents for evaluation of a red, slightly itchy rash that just developed on the back of his right knee. What's the diagnosis?