Presentation
Headache and attacks of loss of conciousness.
Patient Data
A sizable extra-axial left cerebellar space-occupying lesion is noted with the following criteria:
epicentered on the left tentorial leaflet with a broad enhancing dural tail attachment
it measures 5.6 x 5.4 x 5.2 cm in maximum dimensions.
expressing T1, T2 and FLAIR isointense signal
it showed avid homogenous post-contrast enhancement.
no evidence of restricted diffusion or SWI blooming
mild peri-focal edema
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mass effect in the form of:
buckling of the related cortical gyri
compression of the 4th ventricle with contra-lateral midline shift with subsequent supra-tentorial ventricular dilatation with minimal peri-ventricular CSF permeation
tonsillar herniation with effacement of the medullo-cervical junction
Case Discussion
Overall imaging features are impressive of left tentorial meningioma.