2022 年 1 巻 1 号 p. 13-16
A woman in her sixties presented to the dermatology department with erythematous nodules. Seventeen years earlier, she had been diagnosed with rheumatoid arthritis and treated with oral prednisolone. Three years later, she was also diagnosed with pulmonary non-tuberculous mycobacteriosis. Initially, we isolated Mycobacterium intracellulare from the bronchoscopy. However, 8 years later, the bacterial species changed to Mycobacterium abscessus. Skin biopsy was performed, and the culture was positive for Mycobacterium abscessus.