magnetic resonance imaging of lumbar spine: cephalad mass of L4 vertebra with isointense signal intensity (S/I) ratio
magnetic resonance imaging of lumbar spine: cephalad mass of l4 vertebra with isointense signal intensity (s/i) ratio
MRI lumbar osseous mass S/I ratio isointense L4 cephalad
mri lumbar osseous mass s/i ratio isointense l4 cephalad