Steerable Endoscopic Removal of the Third Ventricle Colloid Cyst: A Case Report

The authors report on a patient in whom a colloid cyst located in the anterior third ventricle was treated with stereotactic steerable endoscopic surgery. By inserting the steerable endoscope in the right frontal lobe, the membrane of the capsule was punctured, allowing maximum aspiration of whitish zoll exudate. Although an immediate postoperative CT scan showed a cyst content of 40%o, CT scans performed 7 days and 7 months after surgery indicated that the cyst had completely disappeared. Therefore, the steerable endoscopic extirpation of colloid cysts within the third ventricle is a useful technique that is less invasive than other types of surgery.