Anonymous Mycobacteria in the Etiology of Sarcoidosis

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Abstract
A case is reported of a 17 year old with typical clinical evidence of sarcoidosis. Biopsy of a cervical lymph node showed noncaseating epithelioid cell granuloma consistent with the diagnosis of sarcoidosis; the Kveim test was positive. Culture of the biopsied lymph node revealed 2 colonies of scotochromo-genic mycobacteria. The possible role of anonymous mycobacteria in the etiology of sarcoidosis is discussed and the literature on this subject reviewed.