Endoscopic ventriculocystocisternostomy of a quadrigeminal cistern arachnoid cyst - Case report

The authors present the case of an elderly patient with a quadrigeminal ara chnoid cyst who was successfully treated with endoscopic fenestration throu gh the posterior wall of the third ventricle via the anterior horn of the l ateral ventricle. This 71-year-old man suffered from progressive gait insta bility and disorientation. Radiological examination revealed hydrocephalus caused by a quadrigeminal arachnoid cyst. The patient underwent endoscopic fenestration of the quadrigeminal cistern arachnoid cyst and third ventricu lostomy via one burr hole placed at the coronal suture. This method is less invasive and is effective for quadrigeminal cistern arachnoid cyst and acc ompanying hydrocephalus.