title: Late-onset peripheral joint disease in ankylosing spondylitis.
abstract: We reviewed the records of 150 patients with definite ankylosing spondylitis who had significant peripheral arthritis and were seronegative and found 7 patients who had the onset of peripheral arthritis after their spinal disease became inactive. This late-onset peripheral arthritis may lead to significant joint deformity, and aggressive therapy may be warranted.
mesh_terms: D000368:Aged; D001168:Arthritis / Q000175:diagnosis / Q000209:etiology*; D001172:Arthritis, Rheumatoid / Q000175:diagnosis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000150:complications*; D013997:Time Factors