Ann Dermatol Vener
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Sarcoidosis is a systemic granulomatous disorder of unknown aetiology. Its dermatological manifestations are extremely polymorphous. ⋯ The disease may be heralded by a skin disorder. Diagnosis of cutaneous sarcoidosis provides the clinician with three problems: screening for a visceral site of the disease, determination of the prognosis, and long-term management with regular monitoring coupled with suitable therapy in the event of cosmetic or functional impairment.