Enlarged posterior fossa 'CSF' space
An enlarged posterior fossa 'CSF' space posterior to the cerebellum has a number of differentials that include:
Careful attention to the cerebellum needs to paid as also to be considered are:
- cerebellar atrophy
- Dandy-Walker malformations
- Blake pouch cyst
- vermian hypoplasia (Joubert anomaly)
- isolated fourth ventricle