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Review
. 2018 Sep 10:11:339-344.
doi: 10.2147/JIR.S149494. eCollection 2018.

Sacroiliitis - early diagnosis is key

Gleb Slobodin  1   2 , Haya Hussein  1 , Itzhak Rosner  1   2 , Iris Eshed  3   4
Affiliations
Review

Sacroiliitis - early diagnosis is key

Gleb Slobodin et al. J Inflamm Res. .

Abstract

Sacroiliitis, inflammation of the sacroiliac joint (SIJ), may be associated with many rheumatic and nonrheumatic disorders. The diagnosis of sacroiliitis may be difficult in many patients, and awareness of its typical manifestations along with recognition of its diverse presentations and cognizance of the limitations of today's imaging modalities are critical to good clinical practice. This review presents the didactic approach to the early diagnosis of sacroiliitis in patients with suspected axial spondyloarthritis and other nosologic entities, discussing also differential interpretation of information acquired from patients' histories, physical examination, and imaging.

Keywords: Sacroiliac joint; axial spondyloarthritis; diagnosis; differential diagnosis; imaging; sacroiliitis.

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Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Early sacroiliitis. Notes: Semicoronal MRI T2-weighted with fat saturation (A), T1-weighted (B) and semicoronal CT reconstruction (C) images of the SIJs of a 21 year old male with early sacroiliitis. BME is clearly seen on the right iliac side of the joint (arrowheads in A) as well as small erosions at the same location (arrowheads in B and C). Abbreviations: BME, bone marrow edema; CT, computed tomography; MRI, magnetic resonance imaging; SIJ, sacroiliac joint.
Figure 2
Figure 2
Forty two year old male with ankylosing spondylitis. Notes: Axial CT image of the SIJs (A) demonstrating advanced disease with bilateral subchondral sclerosis, erosions, and pseudo-widening of the joints. Whole-spine MRI of the same patient with semicoronal T1-weighted (B), STIR (C) of the SIJs, and sagittal T1-weighted (D) and STIR (E) of the entire spine demonstrating bilateral SIJ’s BME, fat metaplasia, and erosions as well as corner inflammatory lesions and fatty lesions in the spine. Abbreviations: BME, bone marrow edema; CT, computed tomography; MRI, magnetic resonance imaging; SIJ, sacroiliac joint; STIR, Short-TI inversion recovery.
See this image and copyright information in PMC

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