Spontaneous Cerebrospinal Fluid Rhinorrhea Secondary to Idiopathic Intracranial Hypertension.

The cerebrospinal fluid (CSF) is a physiological fluid that functions to protect the brain tissue and maintain intracranial pressure. Defects between the subarachnoid spaces and other spaces can cause CSF leaks. We report the case of a 37-year-old female with no known past medical history who presented to the emergency department with a history of headaches for two months, nasal drip for 1.5 months, and recurrent fevers. Idiopathic intracranial hypertension was confirmed by cranial magnetic resonance imaging (MRI) and transnasal endoscopic repair of a CSF leak defect, and an abdomen fat graft was performed followed by an Axium navigation-guided right ventriculoperitoneal shunt (VPS).