title: Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 52-1992. Progressive pulmonary air-space disease in a 71-year-old man with emphysema.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008168:Lung / Q000473:pathology; D008297:Male; D011014:Pneumonia / Q000175:diagnosis / Q000473:pathology*; D011658:Pulmonary Fibrosis / Q000175:diagnosis / Q000473:pathology