Correct!
4. 1 and 3

At this juncture empiric antibiotics are justified. VATS might eventually be needed but bronchoscopy with bronchoalveolar lavage is probably the least invasive method capable of providing a diagnosis. The differential from the lavage fluid is in Table 1.

Table 1. BAL cell differential.

  1. Alveolar Macrophage: 14
  2. Lymphocytes: 1
  3. Neutrophils: 85
  4. Eosinophils: 0

All microbiology studies were negative for pathogens.

What is the most likely diagnosis? (Click on the correct answer to be directed to the fourth of six pages)
  1. Eosinophilic pneumonia
  2. Organizing pneumonia
  3. Airway disease
  4. 1 or 3
  5. Any of the above

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