Presentation
Suspected seronegative spondyloarthritis. Chronic sacral and buttock pain. Sacroiliitis?
Patient Data
Age: 35 years
Gender: Male
From the case:
Sacroiliitis due to seronegative spondyloarthritis
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- Marked patchy bone marrow edema around the SI joints with a right-sided dominance best appreciated on the PD FS sequence.
- Simultaneous irregularity and sclerosis of the SI joints best seen on the T1 and T2-weighted sequences as low signal areas around the SI joint spaces.
- Small incidental hemangioma in the S4 vertebral body.
Case Discussion
Findings are pathognomonic for bilateral, but asymmetric sacroiliitis, which developed as the sequela of seronegative spondyloarthritis.
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