Rheumatoid nodules in the lung.
D001168:Arthritis; D001172:Arthritis, Rheumatoid; D006801:Humans; D008168:Lung; D008171:Lung Diseases; D013902:Radiography, Thoracic; D012218:Rheumatoid Nodule
ARTHRITIS, RHEUMATOID; LUNG DISEASES; THORACIC RADIOGRAPHY