postoperative magnetic resonance imaging of lumbar spine: mass of L5-S1 intervertebral disc space enhanced with gadolinium
postoperative magnetic resonance imaging of lumbar spine: mass of l5-s1 intervertebral disc space enhanced with gadolinium
L-spine MRI intervertebral postoperative mass L5-S1 enhanced with gadolinium
l-spine mri intervertebral postoperative mass l5-s1 enhanced with gadolinium