Spontaneous submucosal sphenoidal fistula discovered intraoperatively. A case report

Schlosser, 2006, Spontaneous cerebrospinal fluid leaks: a variant of benign intracranial hypertension, Ann Otol Rhinol Laryngol, 115, 495, 10.1177/000348940611500703 Lloyd, 2008, Imaging of skull base cerebrospinal fluid leaks in adult, Radiology, 248, 725, 10.1148/radiol.2483070362 Tomazic, 2009, Spontaneous CSF-leaks and meningoencephaloceles in sphenoid sinus by persisting Sternberg's canal, Rhinology, 47, 369, 10.4193/Rhin08.236 Shetty, 2000, A retrospective analysis of spontaneous sphenoid sinus fistula: MR and CT findings, AJNR Am J Neuroradiol, 21, 337 Schuknecht, 2008, Non-traumatic skull base defects with spontaneous CSF rhinorrhea and arachnoid herniation: imaging findings and correlation with endoscopic sinus surgery in 27 patients, AJNR Am J Neuroradiol, 29, 542, 10.3174/ajnr.A0840 Clark, 1994, Benign intracranial hypertension: a cause of CSF rhinorrea, J Neurol Neurosurg Psychiatry, 57, 847, 10.1136/jnnp.57.7.847 Woodworth, 2008, Spontaneous CSF leaks: a paradigm for definitive repair and management of intracranial hypertension, Otolaryngol Head Neck Surg, 138, 715, 10.1016/j.otohns.2008.02.010 Tosum, 2003, Endonasal endoscopic repair of cerebrospinal fluid leaks of the sphenoid sinus, Arch Otolaryngol Head Neck Surg, 129, 576, 10.1001/archotol.129.5.576 Saifudheen, 2010, Idiopathic intracranial hypertension presenting as CSF rhinorrhea, Ann Indian Acad Neurol, 13, 72, 10.4103/0972-2327.61286 Lam, 2012, Spontaneous and medically induced cerebrospinal fluid leakage in the setting of pituitary adenoma: review of the literature, Neurosurg Focus, 32, 6, 10.3171/2012.4.FOCUS1268