Abstract: Spontaneous cerebrospinal fluid leaks with meningoencephaloceles restricted to the sphenoid sinus are rare clinical findings.Patients presenting with this special clinical entity usually do not have any history of trauma, tumour or iatrogenic injury. Persistent Sternberg's canal, extensively pneumatised sphenoid sinuses, elevated intracranial pressure and obesity are believed as possible reasons for spontaneous CSF rhinorrhea and meningoencephaloceles in this region.The aim of this study was to define Sternberg's canal as a potential source for spontaneous CSF-leaks and menignoencephaloceles in this region and to describe their endoscopic endonasal management.
Key words: CSF (Cerebrospinal fluid), Endoscopic repair, Lateral recess of sphenoid sinus,Rhinorrhea.
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