Fig. 4From: Cerebrospinal fluid leak presented with the C1-C2 sign caused by spinal canal stenosis: a case reportCSF blockage detected by computed tomography (CT) myelogram. A saggital view of CT myelogram illustrated CSF blockage due to the spinal canal stenosis at C3/4 level. On the other hand, no sign of CSF leak was demonstratedBack to article page