title: Chronic cerebral herniation in shunted Dandy-Walker malformation.
abstract: A review of serial computed tomography (CT) scans of 25 patients with the Dandy-Walker malformation revealed six patients with chronic downward transincisural herniation of the cerebrum after shunt decompression of the posterior fossa cyst or malfunction of a lateral ventricular drainage catheter, or both. Chronic cerebral herniation was detected postmortem in a seventh patient with the Dandy-Walker malformation. The CT findings and autopsy appearance of this previously undescribed feature of shunted Dandy-Walker malformation are illustrated.
mesh_terms: D001344:Autopsy; D002540:Cerebral Cortex / Q000473:pathology; D002557:Cerebrospinal Fluid Shunts; D002675:Child, Preschool; D003388:Cranial Fossa, Posterior / Q000473:pathology; D003616:Dandy-Walker Syndrome / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D004677:Encephalocele / Q000150:complications* / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000150:complications*; D007223:Infant; D008297:Male; D014057:Tomography, X-Ray Computed