Spontaneous intracranial hypotension from a thoracic root sleeve diverticulum

Brain MRI with post-contrast T1-weighted images in sagittal (A) and axial (C) planes shows diffuse meningeal enhancement (arrows).
(B; magnified in inset) Coronal heavily T2-weighted images show CSF leak (arrows) extending laterally from a small, left-sided root sleeve diverticulum in the upper thoracic spine.