Ankylosing spondylitis and rheumatoid arthritis.
D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000000981:diagnostic imaging; D006225:Hand / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D011859:Radiography; D012218:Rheumatoid Nodule / Q000150:complications; D013131:Spine / Q000503:physiopathology; D013167:Spondylitis, Ankylosing / Q000150:complications* / Q000503:physiopathology