Sacroiliitis (differential)

Last revised by Arlene Campos on 1 Jul 2024

Sacroiliitis (rare plural: sacroiliitides), an inflammation of the sacroiliac joint, can be a manifestation of a wide range of disease processes. The pattern of involvement is helpful for narrowing down the differential diagnosis.

Usually bilateral and symmetrical 
Usually bilateral but asymmetrical 
Usually unilateral 

Differential diagnosis

The following conditions can mimic a sacroiliitis

See also

Cases and figures

  • Case 1: sacroiliitis on left - cause unknown
  • Case 2: septic arthritis with psoas abscess
  • Case 3: ankylosing spondylitis
  • Case 3: bone scan
  • Case 4: psoriatic arthropathy
  • Case 5: bilateral- unknown cause

Imaging differential diagnosis

  • Osteitis condensans ilii
  • Hyperparathyroidism
:

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.