Idiopathic Atrophoderma of Pasini and Pierini: A Case Report and Literature Review.

Atrophoderma of Pasini and Pierini (APP) is a rare cutaneous condition of unknown etiology, predominantly affecting young women. It is a dermatologic disorder characterized by hyperpigmented depressed patches of dermal atrophy. Patients usually present with single or multiple asymptomatic, violaceous, and sharply demarcated areas of depressed plaques; of note, unlike morphea, there is no surrounding erythema or induration. In this report, we discuss a case of a 43-year-old South Asian male patient who presented with an eight-month history of multiple asymptomatic, and depressed bluish-brown plaques that had appeared over his body. The clinicopathological correlation was consistent with a diagnosis of idiopathic atrophoderma of Pasini and Pierini (IAPP). We also engage in a review of the literature on IAPP.