Keywords

These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

  • A 48-year-old patient

  • Chronic low back pain

  • Psoriatic skin lesions

Fig. 1
figure 1

Plain film radiography (a), axial CT scan (b), axial contrast-enhanced T1-weighted images with fat saturation (c, d). Bilateral osteosclerosis of the sacroiliac joints (a). Axial CT scan (b) permits to better highlight the subchondral osteosclerosis that is more marked on the iliac sides. MRI shows contrast enhancement on the subchondral sacral sides of the joints (c, d), indicating the active inflammatory phase of sacroiliitis

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