magnetic resonance imaging of lumbar spine: periosseous mass of L1 vertebra with hypointense T2 signal
magnetic resonance imaging of lumbar spine: periosseous mass of l1 vertebra with hypointense t2 signal
magnetic resonance imaging of lumbar spine: periosseous mass of L1 vertebra with hypointense T2 signal (procedure)
magnetic resonance imaging of lumbar spine: periosseous mass of l1 vertebra with hypointense t2 signal (procedure)