Fig. 2. Case 1. A 57-year-old woman with an intradural extramedullary schwannoma at C3-4-5. Preoperative gadolinium-enhanced T1-weighted magnetic resonance imaging, where the sagittal and axial images reveal a left-sided intradural extramedullary lesion (A and B). Computed tomography scans obtained immediately after surgery (C) and 6 months after spinous process-splitting hemilaminoplasty (C3-4-5) (D), suggesting complete bone fusion.