What is the accuracy of hand radiography in the diagnosis of rheumatoid arthritis (RA)?

Updated: Mar 28, 2019
  • Author: Ian Y Y Tsou, MBBS, FRCR; Chief Editor: Felix S Chew, MD, MBA, MEd  more...
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Answer

Answer

Of concern is the possibility of misdiagnosing another erosive arthropathy as RA or vice versa. Because the diagnosis of RA is a predominantly clinical one, the primary role of imaging is in follow-up observation.

In the late stage (but not in the early stage), the deformities and joint fusion of RA are usually distinguishable from other causes of erosive arthropathy. No normal variants simulate RA.


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