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Abstract
Non-tubercular mycobacterial infections (NTM-Non-tubercular mycobacterial infections) are becoming increasingly common. Mycobacterium abscessus is a rare cause of human infection and is difficult to diagnose unless suspected for the same. A 31-year-old patient, diagnosed to have right breast abscess associated with axillary lyphadenopathy with fever. When pus was sent to the microbiology laboratory, after culture it was confirmed to be due to M. abscess. Definitive identification of this species of mycobacterium was possible by growth characteristics and biochemical tests. The organism was sensitive to Kanamycin, Clarithromycin, Ciprofloxacin, and Amikacin. However, complete recovery from infection was possible after prolonged treatment with clarithromycin to which the organism was sensitive.