Arachnoid pit and extensive sinus pnematization as the cause of spontaneous lateral intrasphenoidal encephalocele.

Journal of Clinical Imaging Science
Ali AlmontasheriNader Aldajani

Abstract

Lateral sphenoid encephalocele, especially within the lateral aspect of the sphenoid sinus, when the sphenoid sinus has pneumatized extensively into the pterygoid recess, are considered exceedingly rare. We report a rare case of lateral intrasphenoidal encephalocele with spontaneous cerebral spinal fluid (CSF) rhinorrhea. Computed tomography demonstrated bilateral arachnoid pit, extensive sphenoid sinus pneumatization, and a defect in the superior wall of the left lateral recess of the sphenoid sinus. Magnetic resonance imaging demonstrated anteromedial temporal lobe herniating through the bony defect.

References

Feb 6, 2007·The Laryngoscope·Paolo CastelnuovoMaurizio Bignami
Apr 30, 2009·American Journal of Rhinology & Allergy·Christopher F BarañanoBradford A Woodworth
Aug 25, 2009·Journal of Neurosurgery·Abtin TabaeeTheodore H Schwartz

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