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Images reveal intra-sinus brain herniation in 46-year-old woman with headache and blurred vision. (A) MRV shows occlusion/ hypoplasia on LTS with normal RTS; (B) T1w black-blood image shows a small herniation of cerebellum parenchyma with surrounding CSF into RTS that was isointense on T1w; (C) T1w black-blood contrast-enhanced image shows a hyperintense margins surrounding the brain herniation; (D) T1w enhanced image shows a focal filling defect.
