Meckel cave meningioma
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A T1 intermediate and mildly T2 hyperintense mass is centered near the petrous apex of the left temporal bone extending prepontine and exerting mass effect on the left. Post-contrast images show avid enhancement. Features consistent with a left Meckel's cave meningioma.
See also : tumors of meckel's cave
Paraffin sections show a moderately hypercellular meningioma with a well developed syncytial architecture. Tumor cells have regular nuclear features. A very occasional mitotic figure is identified. No necrosis is seen and there is no evidence of brain invasion.