• is a
  • group of bacteria that can infect the
    • cervical lymph nodes,
    • skin,
    • soft tissues, and
    • lung
• Caused by
  • Mycobacterium avium-intracellulare or
  • M kansasii.
    • ubiquitous
    • slow growing
    • normal colonization
• Resulting in
  • chronic, indolent pulmonary infection
•  Diagnosis
  • Clinical
    • indolent
  •  Difficult
    • isolation from sputum or bronchoalveolar lavage fluid can be
      • airway colonization
    • Imaging
      • may be indistinguishable from classic TB
      • protean and include
        • centilobular nodules
        • cavitation
        • consolidation,
        • fibrosis,
        • bronchiectasis, and
        • adenopathy.
      • mosst severe in the lingula and middle lobe

Erasmus, J et al Pulmonary Nontuberculous Mycobacterial Infection: Radiologic Manifestations RadioGraphicsVol. 19, No. 6 Nov 1999

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