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Plain and contrast MRI of brain show a well-defined T2 hyperintense, T1 hypointense and FLAIR heterogeneously hyperintense intraventricular lesion arising from the choroid plexus of left lateral ventricle measuring 3.1 x 1.8 x 2.0 cm (AP x TR x CC). There are scattered foci of restricted diffusion and blooming (calcifications) on gradient imaging. No periventricular CSF seepage is seen. There is no appreciable contrast enhancement on post-contrast T1 image.
These features are consistent with choroid plexus xanthogranuloma.