A 50-year-old man comes to the physician for a 1-year history of gradually progressive shortness of breath on exertion. Cardiovascular examination shows no abnormalities. He has a history of having worked in the aeronautical industry. A CT is shown.
Which of the following is most likely to be seen in this patient?
Decreased FEV1/FVC
Eggshell calcification
Ferruginous bodies
Noncaseating granulomatous inflammation
Polyarthritis, splenomegaly, and neutropenia
