Correct!
3. Hypersensitivity pneumonitis secondary to MAC
The patient’s history of frequent hot tub usage for back pain, growth of MAC from her BAL, small nodules and ground-glass opacities on her thoracic CT scan, and granulomas on her lung biopsy are all compatible with hypersensitivity pneumonitis secondary to MAC or “hot tub lung” (1). All the others are associated with granulomas on lung biopsy but none are compatible with the present clinical situation.
What should be done next to treat her hypersensitivity pneumonitis? (Click on the correct answer to be directed to the seventh and final page.)