Rheumatoid lungs and rheumatoid piles.
D001172:Arthritis, Rheumatoid / Q000150:complications*; D002205:Caplan Syndrome; D006801:Humans; D007249:Inflammation; D008171:Lung Diseases / Q000150:complications* / Q000175:diagnosis* / Q000209:etiology; D010995:Pleural Diseases