• Internal medicine · Jul 2024

    Case Reports

    A Case of Disseminated Non-tuberculous Mycobacteriosis with a Skull Lesion Controlled by Resection after Exacerbation during Antimicrobial Chemotherapy in a Patient Positive for Anti-IFN-γ-neutralizing Autoantibodies.

    • Kei Chubachi, Kageaki Taima, Mina Ishidoya, Yusuke Tanaka, Akira Kurose, and Sadatomo Tasaka.
    • Department of Respiratory Medicine, Hirosaki University Graduate School of Medicine, Japan.
    • Intern. Med. 2024 Jul 15; 63 (14): 205320572053-2057.

    AbstractA 48-year-old man presented with a fever and back pain and was referred to our hospital with multiple bone destruction and abscess formation. A sputum examination revealed Mycobacterium intracellulare, and pathological findings revealed an indistinct granuloma and acid-fast bacilli, leading to a diagnosis of disseminated nontuberculous mycobacteriosis. Anti-interferon-γ-neutralizing autoantibodies were detected in the serum, and acquired immunodeficiency was suspected to be the etiology. Antimicrobial chemotherapy was initiated, and the lesions generally regressed. However, only the skull lesions worsened, requiring local resection to control the disease. Currently, the patient is continuing to receive drug therapy with good disease control after debridement.

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