Dandy-Walker malformation

Case contributed by Utkarsh Kabra
Diagnosis almost certain


Enlarged head size, occipital swelling

Patient Data

Age: 4 months
Gender: Female

Severe hypoplasia / aplasia of cerebellar vermis is seen. Cystic dilatation of fourth ventricle is seen extending posteriorly to a significantly enlarged posterior fossa.
Torcular – lambdoid inversion is seen with open posterior fontanelle and scalloping of both occipital bones.
Bilateral lateral and third ventricles are dilated with mild splaying of corpus callosum. No significant periventricular seepage is seen in present scan.

Case Discussion

Findings are suggestive of Dandy-Walker malformation.

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.