Dermoscopy aids in differentiating primary cutaneous amyloidosis and post-inflammatory hyperpigmentation: A clinico-dermoscopic-histopathaological study.

Background: Primary cutaneous amyloidosis (PCA) and post-inflammatory hyperpigmentation (PIH) are common causes of cutaneous hyperpigmentation that are usually diagnosed clinically. However, their presentations are sometimes atypical, and their differentiation is difficult. Dermoscopy is a valuable diagnostic tool for pigmented diseases that might aid in their diagnosis.