Presentation
18 month old with large head circumference and failure to meet developmental milestones.
Patient Data
Age: 1 year
Gender: Male
From the case:
Dandy Walker malformation
{"current_user":null,"step_through_annotations":true,"access":{"can_edit":false,"can_download":true,"can_toggle_annotations":true,"can_feature":false,"can_examine_pipeline_reports":false,"can_pin":false},"extraPropsURL":"/studies/23294/annotated_viewer_json?lang=us"}
Posterior fossa cystic abnormality communicating with the 4th ventricle with gross hydrocephalus.
Case Discussion
This is a classic case of a Dandy Walker malformation. The most severe end of the Dandy Walker spectrum.
- hypoplasia of the vermis and cephalad rotation of the vermian remnant
- cystic dilatation of the fourth ventricle extending posteriorly
- enlarged posterior fossa with torcular-lambdoid inversion (torcular lying above the level of the lambdoid due to abnormally high tentorium
In addition in this case there is gross hydrocephalus as a consequence of the posterior fossa abnormalities, with periventricular high signal in keeping with trans-ependymal edema.
Unable to process the form. Check for errors and try again.