Magnetic resonance imaging of the sacroiliac joints is now frequently performed to help identify patients with early axial spondyloarthritis. However, differential diagnoses exist and should be recognized. The aim of this article is to review the most frequent differential diagnoses that may mimic inflammatory sacroiliitis in clinical practice.
Keywords: anatomy; joint; magnetic resonance imaging; osteoporotic fractures; post-partum period; sacroiliac; sacroiliitides; spondylarthritis.