Clinicoradiological and surgical considerations in the treatment of cholesterol granuloma of the petrous pyramid.

Skull Base : Official Journal of North American Skull Base Society ... [et Al.]
Ulrike BockmühlWolfgang Draf

Abstract

We describe a 71-year-old woman who complained of a 1-year history of double vision when looking to the left, numbness over the right cheek, intermittent tinnitus, and gradually increasing unsteadiness when walking. Computed tomography and magnetic resonance imaging revealed a cholesterol granuloma at the right pyramidal apex anterior to the internal auditory canal and a slight compression of the brainstem on the ipsilateral side. For surgical removal we used the transtemporal approach instead of the trans-sphenoidal approach to obtain better control over the internal carotid artery. To avoid the problems of stenting, the resulting dead space was obliterated with fat. We discuss the essential preoperative imaging, controversies in choosing the appropriate surgical approach, and developments in treatment.

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