Endoscopic Fenestration of Posterior Fossa Arachnoid Cysts

Introduction: Posterior Fossa arachnoid cysts (PFAC) are rare lesions in the childhood. Owing to wide variety of cystic malformations within posterior cranial fossa, PFAC have long attracted attention pediatric neurosurgeons because they can produce not only neurological symptons but also behaviro and learning deficts, addition presenting major surgical challenges. Surgical treatment is warranted symptomatic patients. Nowadays, neuroendoscopic techniques established themselves as choice these lesions.
 Patients Methods: We present four cases which were treated using endoscopic neurosurgery. Endoscopic approaches defined by presence hydrocephalus, discussed each case.
 Results : Two quadrigeminal plate cysts, predominantly occupying infratentorial compartment , one case supracerebellar cyst cerebellopontine angle with good results. However, developed a communicating requiring placement cyst-ventricle peritoneal shunt, guided neuroendoscope.
 Discussion Conclusion A literature review was performed. The clinical features, advantages disadvantages several treatments discussed. Symptomatic should be treated. relatively results fenestration buttresses our use first-line surgery.