A 67-year-old man has a long history of symmetrical small joint arthritis with deformities. He now develops shortness of breath on exertion with a dry cough, but no sputum or chest discomfort. His heart sounds have a loud P2, and the lungs have fine bibasilar crackles. Which of the following is the most likely diagnosis of the pulmonary condition associated with his arthritis?
pleuritis cavitating lesions intrapulmonary nodules interstitial fibrosis