Cutaneous tuberculosis: atypical skin lesions in immunodepressed patients.

We report a case of secondary skin tuberculosis due to endogenous secondary infection in a 27-year-old subject affected by ulcerative colitis. The clinical appearance the lesion was atypical and its classification uncertain. The morphology of the lesion and the fact that the primary tubercular complex, at pulmonary level, was masked by a simultaneous candidiasis infection were probably due to cell-mediated immunodeficiency consequent to the ulcerative colitis and on-going therapy (Salazopyrin and prednisone). Rapid remission of cutaneous and pulmonary lesions was achieved following specific therapy (rifampicin, isoniazid, ethambutol).