Rheumatoid disease of the lung with cavitation. Report of two cases.
D003937:Diagnosis, Differential; D006801:Humans; D008171:Lung Diseases / Q000150:complications* / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011658:Pulmonary Fibrosis / Q000209:etiology*; D012218:Rheumatoid Nodule / Q000150:complications* / Q000175:diagnosis*