Psoriatic arthritis CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Chandrakala Yannam, MD [2], Syed Hassan A. Kazmi BSc, MD [3]

Overview

CT scan of patients with psoriatic arthritis involving spinal column and sacroiliac joints may show erosions, synovitis, sacroiliitis and bone ankylosis.

CT scan

• Findings on CT scan involving the spine or sacroiliac joints suggestive of psoriatic arthritis include:
  • Erosions
  • Synovitis
  • Bone ankylosis
  • Sacroiliitis
  • joint space narrowing

Joint erosion seen in left sacroiliac joint in psoriatic arthritis, courtesy of slideshare.net