Objective: We present the case of a sushi chef with pain and swelling of his index finger and wrist for a year, unresponsive to antibiotics.
Methods: Biopsy showed a xanthogranulomatous reaction and positive culture results for Mycobacterium marinum.
Results: He was treated with minocycline, clarithromycin, and ethambutol. In addition, he underwent radical synovectomy of the lesion.
Conclusion: The combined medical and surgical approach resulted in a positive outcome.