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Two Patterns of Sacroiliac Joint Bone Marrow Oedema are apparent in AxSpA Determined by HLA-B27 Status, Body Mass Index or Psoriasis
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DOI：10.1016/j.jbspin.2026.106079.png)
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Abstract
En 中文
• Sacroiliac MRI reveals two predominant bone marrow oedema distribution patterns in axSpA • Upper SIJ oedema is associated with higher BMI and psoriasis, independent of HLA-B27 • Lower SIJ oedema aligns with classical HLA-B27–positive axial spondyloarthritis features • Upper SIJ oedema regresses with biologic therapy, supporting an inflammatory origin • Regional SIJ patterns reflect a biomechanical–immunological continuum in axSpA
Keywords:
axial spondyloarthritis
bone marrow oedema
sacroiliac joints
magnetic resonance imaging
psoriasis
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