Meyerson Phenomenon Arising from a Congenital Melanocytic Nevus in a Six-Month-Old Female

A 6-month-old Hispanic female presented with a 2-month history of a pruritic rash overlying a congenital nevus on the right arm (Figure, A). No bleeding from the lesion was noted. The growth of the underlying congenital nevus was stable prior to presentation. On physical exam, a 2.8 x 1.5 cm dark brown plaque with a surrounding honey crusted xerotic plaque was present. A diagnosis of a medium congenital melanocytic nevus with Meyerson phenomenon and secondarily impetiginized eczema was made. Treatment with oral Azithromycin and Fluticasone propionate 0.005% ointment was initiated.

source https://www.jpeds.com/article/S0022-3476(21)01146-X/fulltext?rss=yes