Fig. 1

Magnetic resonance (MR) images of the lumbosacral spine. a Sagittal T1-weighted MR image shows endplate irregularity and abnormal low signal intensity (SI) in bone marrow at the T11–T12, L2–L3 and L4–L5 levels (white arrow). b Sagittal T2-weighted MR image shows high SI in the intervertebral disc of T11–T12, L2–L3 and L4–L5 levels (white arrow) and an epidural abscess (black arrow). c Sagittal contrast-enhanced (CE) fat-suppressed T1-weighted MR image shows enhancement of the endplates and bone marrow at the T11–T12, L2–L3 and L4–L5 levels (white arrow) with epidural abscess at L2–L3 level (black arrow). d Coronal CE fat-suppressed T1-weighted MR image shows faint enhancement at bilateral psoas muscles (asterisk) without abscess, represented myositis. e Axial CE fat-suppressed T1-weighted MR image shows an epidural abscess (black arrow)