Description: The macroscopic view: a large black lesion of the thigh.

History:

This infant was 20 months old when she consulted. The lesion on the thigh had appeared 6 months ago, and was growing. It had a diameter of 5.5 mm.

The dermoscopic image was typical, with a black structurless center, and at the periphery, streaks and pseudopods, regularly disposed, forming a starbust pattern.

An excision was decided, and the pathology confirmed the diagnosis of Reed nevus.