magnetic resonance imaging of lumbar spine: caudal mass of L4 vertebra with hypointense T1 signal
magnetic resonance imaging of lumbar spine: caudal mass of l4 vertebra with hypointense t1 signal
magnetic resonance imaging of lumbar spine: caudal mass of L4 vertebra with hypointense T1 signal (procedure)
magnetic resonance imaging of lumbar spine: caudal mass of l4 vertebra with hypointense t1 signal (procedure)