Cary M. Wright, MD, MS, is a recent graduate of the University of Illinois College of Medicine at Chicago and is an intern at the Stanford Pediatrics Residency Program in California
Swollen, purple, blistered thumb leads to diagnosis of herpetic whitlow
You are asked to evaluate a boy, aged 14 years, who presents with one week of tender, expanding, confluent, purple blisters on his swollen left thumb, extending under the thumbnail.. What is the diagnosis?