Cutaneous Sarcoidosis- A Report of Two Intriguing Cases

Abstract

Sarcoidosis is an inflammatory disease which leads to formation of noncaseating granuloma in the affected organs like lungs, lymph nodes and less commonly the skin. Cutaneous sarcoidosis occurs in about 20-35% of individuals with systemic sarcoidosis. Skin involvement serves as an early marker and may be the presenting sign of systemic sarcoidosis. Wide variety of morphological forms of cutaneous sarcoidosis is known to occur simulating several other dermatoses. Isolated skin involvement is very rare. Histopathological examination and special stains plays an important role in ruling out other granulomatous conditions like cutaneous tuberculosis, leprosy, foreign body granuloma and granuloma annulare from sarcoidosis. Corticosteroids remain the main cornerstone in the treatment of cutaneous sarcoidosis. Here, the authors reported two interesting cases of cutaneous sarcoidosis without systemic involvement, of which one presented as micropapular sarcoidosis and the other was mimicking lupus vulgaris. Both of them responded well to corticosteroid treatment and are in regular monitoring for development of systemic symptoms. Informed consent was obtained was obtained from both the patients.