Kim YY, et al. - Experts demonstrated the proportions of modalities used in diagnosing sacral insufficiency fractures (SIFs) in practice and compared the clinical and imaging features of SIF diagnosed by lumbar spine MRI (L-spine MRI) with those diagnosed by non-lumbar imaging modalities (bone scan, pelvic bone CT, pelvis MRI). More commonly, compared to non-lumbar imaging modalities, L-spine MRI diagnose SIFs, because of symptoms that mimic lumbar spine pathology and variable comorbid causes of pain. SIF commonly represents an underrecognized entity and in order to achieve earlier and more appropriate management of this disease, the knowledge that L-spine MRI commonly reveal SIF and to be familiar with SIF features on L-spine MRI would be helpful by increasing sensitivity in detecting this entity.