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Progressive cribriform and zosteriform hyperpigmentation (PCZH), first described by Rower et al. in 1978, is a distinctive clinicopathological pigmentary disorder of the skin [1]. PCZH refers to an asymptomatic dermatosis consisting of a single area of uniformly tan, cribriform, macular pigmentation in a zosteriform distribution; histological pattern consisting of mild increase in melanin pigment in basal cell layer and complete absence of nevus cells. It had onset well after birth with no reported systemic associations. Di Lernia et al. [2], suggested that PCHZ should be considered as a part of spectrum of Linear and Whorled Nevoid Hyperpigmentation(LWNH) as apart from later age of onset, there was no difference between the two disorders clinically and histopathologically. They also proposed the terms ‘Diffuse LWNH’ for previous reported cases of LWNH and ‘Localized-form’ for PCZH [3].

Dermosccopic features of progressive cribriform and zosteriform hyperpigmentation