title: Upper lobe fibrosis and cavitation in rheumatoid disease.
abstract: Four patients are described with rheumatoid disease with upper lobe fibrosis and cavitation which could not be explained by cavitation of rheumatoid nodules or any other recognized pulmonary manifestation of this disease.
mesh_terms: D000368:Aged; D000936:Antigen-Antibody Complex; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000000981:diagnostic imaging / Q000276:immunology; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008297:Male; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000276:immunology; D011859:Radiography; D012217:Rheumatoid Factor / Q000032:analysis
chemical_list: D000936:Antigen-Antibody Complex; D012217:Rheumatoid Factor