Spontaneous CSF-leaks and meningoencephaloceles in sphenoid sinus by persisting Sternberg's canal

Rhinology
Peter Valentin Tomazic, Heinz Stammberger

Abstract

Cerebrospinal fluid (CSF) leaks and meningoencephaloceles of the lateral recess of sphenoid sinuses are rare findings. A congenital bony defect in the lateral wall of sphenoid sinus called Sternberg's canal could be the origin of these lesions. Their endoscopic transnasal management is challenging though less traumatic than transcranial approaches. The aim of this study was to define Sternberg's canal as a potential source for these rare lesions and to describe their endoscopic endonasal management. In a retrospective analysis clinical charts of 27 patients with CSF-leaks and / or meningoencephaloceles operated between March 2002 and October 2008 at the University ENT-hospital Graz have been reviewed. All patients were treated by an endoscopic endonasal approach. Five patients (4 female / 1 male) were identified with spontaneous CSF-leaks from sphenoid sinus and meningoencephaloceles. In all five cases, Sternberg's canal was the site of leakage, with the bony and dural defects always located laterally between the maxillary and Vidian nerves. Mean age was 51.2 years and mean body mass index (BMI) was 31.9 kg/m2. All patients were operated using a multilayer closure technique. Two patients had recurrences after 12 days and 7 mont...Continue Reading

Citations

Feb 6, 2019·Zhurnal voprosy neĭrokhirurgii imeni N. N. Burdenko·E V SheleskoT V Tsukanova
May 7, 2020·Acta neurochirurgica·Samuel Z HanzTheodore H Schwartz

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