Cuteneus Sarcoidosis, Mimicking Acne In A Patient and The Importance Of Dermoscopy In Differential Diagnosis

Sarcoidosis is a multi-systemic granulomatous disease of unknown aetiology. After the lungs, the skin is the second most common organ involved. Cutaneous involvement occurs in up to 30% of patients and skin findings are often the initial presenting symptom. Plaques and papules are the most commonly observed cutaneous lesions. Sarcoidosis can be mimicing other diseases. Dermoscopy is a non-invasive method that allows skin lesions to be visualized. In recent years, it is used for increasing diagnostic accurarcy in many skin diseases. Sarcoidosis is one of these diseases. We present a case of 50 year old man, with erythematous maculopapules over the front of chest for about two years. He treated like acne but had no benefit from therapies. Cutaneus sarcoidosis was diagnosed at the end of the dermoscopic, clinical and histopatological examination of patient. Here, we emphasized that, sarcoidosis can interfere many skin diseases and dermoscopy is a non-invasive method that can be used before biopsy in the differential diagnosis