Fig. 12From: The Filum disease and the Neuro-Cranio-vertebral syndrome: definition, clinical picture and imaging featuresFrequency of presyringomyelic lesions and of the various degrees of longitudinal extension of syringomyelic cavities (Grade 0 corresponds to normal spinal cord), in the selected 373 patients. SCIE = Spinal Cord Ischemia-Edema; CCD = Central Canal Dilatation; IMC=Intramedullary CystBack to article page