magnetic resonance imaging of lumbar spine: mass of posterior aspect of L4 vertebra with hypointense T1 signal
magnetic resonance imaging of lumbar spine: mass of posterior aspect of l4 vertebra with hypointense t1 signal
spine magnetic resonance imaging T1-weighted lumbar osseous mass hypointense signal L4 posterior
spine magnetic resonance imaging t1-weighted lumbar osseous mass hypointense signal l4 posterior