magnetic resonance imaging of thoracic spine: extramedullary mass of cord extending to (T___)
magnetic resonance imaging of thoracic spine: extramedullary mass of cord extending to (t___)
magnetic resonance imaging of thoracic spine: extramedullary mass of cord extending to (T___) (procedure)
magnetic resonance imaging of thoracic spine: extramedullary mass of cord extending to (t___) (procedure)