What causes false positives and negatives on radiography for septic arthritis (SA)?

Updated: Sep 19, 2019
  • Author: Lourdes Nunez-Atahualpa, MD; Chief Editor: Felix S Chew, MD, MBA, MEd  more...
  • Print


Poorly defined bony erosions are characteristic of septic arthritis and a helpful feature in differentiating septic arthritis from other diseases in the differential diagnosis. Osseous erosions in gout, rheumatoid arthritis, seronegative spondyloarthropathies, pigmented villonodular synovitis, hemophilia, and synovial osteochondromatosis tend to be sharply marginated.

Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!