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