magnetic resonance imaging of lumbar spine: intramedullary mass of cord extending to (S___)
magnetic resonance imaging of lumbar spine: intramedullary mass of cord extending to (s___)
magnetic resonance imaging of lumbar spine: intramedullary mass of cord extending to (S___) (procedure)
magnetic resonance imaging of lumbar spine: intramedullary mass of cord extending to (s___) (procedure)