Fig. 5From: Right gyrus cinguli low-grade astrocytoma recurrence removed through a contralateral transfalcine approach with a 4K-3D exoscopeDuring dura opening, bridging veins must be carefully preserved (A); the left interhemispheric fissure is opened to reach the contralateral gyrus cinguli (B); the tumor is removed using an ultrasonic aspirator (C); before the intraoperative MRI scan at the end of removal, an ultrasound check is performed to rule out residual tumor (D)Back to article page