Frictional melanosis and macular amyloidosis – exploring the link

Abstract

Frictional melanosis is a condition that is often encountered in dermatology practice. The acquired pigmentary disorder has clinical similarity to the condition termed macular amyloidosis. These two entities have etiological-epidemiological and clinical overlap. Dermoscopy and histopathology can demonstrate subtle differences. The review is an attempt to understand the different etiological aspects proposed for these conditions. We discuss the clinical features of the two conditions, dermoscopic features and histopathological changes. It is imperative for dermatologists to be aware of the similarities and the differences between the two entities for their better management.

Keywords

• cutaneous amyloidosis
• frictional melanosis
• macular amyloidosis