An Endoscopic Endonasal Repair of Spontaneous Skull Base Cerebrospinal Fluid Leak.

Idiopathic intracranial hypertension is a disease of elevated intracranial pressure that can lead to spontaneous cerebrospinal fluid leak at the skull base. We present a case of CSF leak in a young female with undiagnosed idiopathic intracranial hypertension that presented as clear rhinorrhea. The defect in the skull base was visualized with computerized tomography and repaired endoscopically with adjuvant placement of a lumboperitoneal shunt. This case outlines the important sequence of repair and postoperative care for spontaneous cerebrospinal fluid leak, and demonstrates the safety and efficacy of endoscopic endonasal repair.