IS IT PAPULAR SARCOIDOSIS OR CUTANEOUS TUBERCULOSIS?: A CASE REPORT

Cutaneous lesions are uncommon manifestations of tuberculosis, occurring in only 1 to 2 percent of infected patients. It can occurs by different ways: exogenous inoculation; contiguity (eg tuberculosis cutis orificialis) or by hematogenous spread. Tuberculids are a separate category of cutaneous tuberculosis that likely represent hypersensitivity reactions to mycobacterial antigens. Three types of tuberculids are described, including erythema induratum of Bazin, papulonecrotic tuberculid and lichen scrofulosorum. In contrast, cutaneous manifestations of sarcoidosis are more frequent, affecting about 25% of patients. Different patterns of lesions are described, among them papular sarcoidosis is one of the most common, usually presenting as numerous, non scaly, 1 to 10 mm papules, frequently on face with a predilection for the eylids and nasolabial folds.