Percutaneous minidose metrizamide endomyelographic computed tomography in syringomyelia

Two patients presented with syringomyelia, each unusual. After neuroradiographic diagnosis with delayed metrizamide computed tomography (CT) or magnetic resonance imaging (MRI), an interesting diagnostic question arose. A percutaneous minidose metrizamide endomyelographic CT (PMDMECT) study clarified each situation and directly affected the neurosurgical approaches. The features of each case, the technique of PMDMECT, and postoperative follow-up data are reported.