case_images: PMC9512130_01
case_images: Sagittal T1 and T2-weighted sequence of the lower thoracic and lumbo-sacral spine demonstrate normal bone marrow signal and normal intervertebral disc spaces. Axial T2-weighted sequences of the pelvis demonstrate thickened, edematous anterior joint capsule of the right sacro-iliac joint with anterior extracapsular oedema tracking along the posterior margin of the iliopsoas muscle. Further oedema extends posteriorly towards the right gluteus minimus and medius muscles. Peri-articular marrow edema is seen on the iliac side of the right sacroiliac joint and no erosions demonstrated.
case_images: acc-09-03-108-g001.jpg
case_images: PMC9512130_01_acc-09-03-108-g001.jpg
case_images: f1
case_images: No drainable collection was identified following contrast administration. (Figure 1).