CTICasesMycobacterium avium complex (MAC)
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Imaging findings
Nodules, tree-in-bud opacities, bronchial thickening, and cystic and cylindrical bronchiectasis, most prominent in the right middle lobe and lower lobes. The imaging shows extensive small airway involvement.
Key takeaways
MAI infection is a common cause of nodular/bronchiectatic bronchiectasis, often demonstrating characteristic tree-in-bud nodules and bronchial thickening, particularly in the right middle lobe.
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