magnetic resonance imaging of lumbar spine: mass of posterior aspect of L1 vertebra with hypointense signal intensity (S/I) ratio
magnetic resonance imaging of lumbar spine: mass of posterior aspect of l1 vertebra with hypointense signal intensity (s/i) ratio
MRI lumbar osseous mass S/I ratio hypointense L1 posterior
mri lumbar osseous mass s/i ratio hypointense l1 posterior