Erythematous Nodule With Central Crust on the Nail Fold in an Infant

A girl younger than 2 years presented with a 7-month history of an inflammatory plaque with a central shiny orange crust on her left index finger and no improvement with empiric therapy. What is your diagnosis?

Source: JAMA Dermatology - August 5, 2020 Category: Dermatology Source Type: research