Tuberculoid tenosynovitis and carpal tunnel syndrome caused by Mycobacterium szulgai.
Mycobacterium szulgai, a scotochromogenic mycobacterium, is a newly recognized pathogen of man and has been reported to cause pulmonary infections, olecranon bursitis and cervical adenitis. We isolated M. szulfai from granulomatous tissue removed at surgery from a young florist with the carpal tunnel syndrome. The organism was susceptible to ethambutol and rifampin but resistant to isoniazid. Cure was achieved by debridement and chemotherapy with ethambutol and rifampin. Neither the source in our patient nor the natural habitat of M. szulgai is known. Because it resembles M. gordonae and M. flavescens, common scotochromogenic mycobacteria in tapwater, care must be taken to avoid dismissing M. szulgai as a contaminant when it is isolated from tissue.
Stratton, CW; Phelps, DB; Reller, LB
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