Pyogenic spondylitis caused by Escherichia coli: A case report and literature review

Figure 1 Preoperative lumbar computed tomography. A and B: Uneven density of L2-3 vertebral bodies, local bone defects at opposite margin, mass-like soft tissue density shadow around, left psoas enlargement with uneven density, and infection is suspected (arrows); C: Local bone destruction of anterior and middle L2-3 vertebral bodies, and uneven density around (arrow).

Figure 2 Preoperative lumbar magnetic resonance imaging plain and enhanced scans. A and B: The vertebral signal changes, with no evident changes observed in the intervertebral disc (arrows). T1 and T2 weighted images show patchy hypo-intense signal in the L2-L3 vertebral bodies; C and D: Images with fat suppression show that the cortical bone of spine is incomplete, hyper-intense signals are seen in the L2-3 vertebral bodies, and no obvious enhancement is seen after enhanced scan (arrows); E: Long T1 and T2 signal shadows in the left psoas major muscle, and annular enhancement is seen from enhanced scan, suspected of abscess formation (arrow); F: Coronal patchy changes in the L2-3 vertebral bodies (arrow).