magnetic resonance imaging of thoracic spine: intramedullary mass of cord extending to (L___)
magnetic resonance imaging of thoracic spine: intramedullary mass of cord extending to (l___)
magnetic resonance imaging of thoracic spine: intramedullary mass of cord extending to (L___) (procedure)
magnetic resonance imaging of thoracic spine: intramedullary mass of cord extending to (l___) (procedure)