A 17-year-old girl presented a pigmented lesion with a lateral depigmentation.
Dermoscopy revealed a globular pattern associated with a whitish structureless area. On this whitish area some vessels were observed. There were no signs of peppering.This lesion was excised and pathology revealed a benign dermal melanocytic nevus with a fibrous involution.
Whitish structureless area can be observed in:
- fibrous involution
- after traumatism
- in case of regression (with peppering)