Giant Recurrent Supratentorial Neurenteric Cyst As a Cause of Medically Refractory Epilepsy.

We report on a unique case of a giant, recurrent, supratentorial neurenteric cyst causing intractable eplipsy. Following resection, the patient developed a delayed reactive cerebritis with focal edema and worsened seizures that fully resolved with medical management. At last follow-up, over 18 months later, the patient has no evidence for cyst recurrence and remains seizure-free. we conclude that complete resection of these lesions not only requires fenestration, but also microsurgical stripping of the cyst wall. Moreover, post-operative management inclues monitoring for worsened seizures as a consequence of intracranial exposure to the cystic contents and subsequent reactive cerebritis.