IMPORTANT: We currently have a number of bugs related to image cropping and are actively trying to resolve them. In the meantime, we have disabled cropping. Apologies for any inconvenience. Stay informed: radiopaedia.org/chat

Dandy-Walker malformation

Case contributed by Heba Abdelmonem
Diagnosis certain

Presentation

Delayed motor milestones.

Patient Data

Age: 1 year
Gender: Female
ct

Large posterior fossa cyst communicating with the 4th ventricle, associated with cerebellar and vermian hypoplasia.

Markedly dilated ventricular system.

Case Discussion

One year old with delayed motor milestones. Head CT shows the classic appearance of Dandy-Walker malformation with concomitant hydrocephalus, which is a very common finding, occuring in 70-90% of cases.

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.