Endoscopic Resection of Skull Base Teratoma in Klippel-Feil Syndrome through Use of Combined Ultrasonic and Bipolar Diathermy Platforms

Figure 4

Use of intraoperative CT image guidance assistance during skull base approach. Computer-assisted navigation system (image guidance) highlighting intraoperative CT scan imaging in coronal, sagittal, and axial views. With the registered instrument tip contacting the anterior face of the lesion (endoscopic image at bottom right), the fine cut maxillofacial CT scan shows calcified material present within the skull base teratoma at this site of tumor contact (intersection point of green lines), representing intratumoral dentition.