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Post contrast CT scan (posterior fossa window), the medial aspect of the petrous apex is eroded (arrow) {also well seen in Figure A (arrow)}, with the associated enhancing soft tissue component that is abutting the adjacent pons.

 Post contrast CT scan (posterior fossa window), the medial aspect of the petrous apex is eroded (arrow) {also well seen in Figure A (arrow)}, with the associated enhancing soft tissue component that is abutting the adjacent pons.