magnetic resonance imaging of lumbar spine: caudal mass of L4 vertebra with hyperintense T1 signal
magnetic resonance imaging of lumbar spine: caudal mass of l4 vertebra with hyperintense t1 signal
L-spine MRI T1-weighted osseous mass hyperintense signal L4 caudal
l-spine mri t1-weighted osseous mass hyperintense signal l4 caudal