Difficulties in the differential diagnosis of the face papular dermatoses: Clinical case

Abstract

Rare cases of cutaneous sarcoidosis without extracutaneous manifestations are presented. Sarcoidosis is a chronic systemic inflammatory disease of unknown cause characterized by noncaseating granulomas and the involvement of various systems and organs. Most often, the present clinical picture is plaques, nodules, patchy-papular changes, scars, or lupus pernio. The histological examination of a biopsy of the affected skin is the gold standard for diagnosing sarcoidosis. However, the process of diagnosing cutaneous sarcoidosis is often complicated by the similarity of its clinical manifestations with other dermatoses, the rare occurrence of the disease, as well as the absence of data in the patients’ history that would indicate this pathology.