Enlarged posterior fossa 'CSF' space
Citation, DOI, disclosures and article data
Citation:
Gaillard F, Hacking C, Thurston M, et al. Enlarged posterior fossa 'CSF' space. Reference article, Radiopaedia.org (Accessed on 14 Mar 2025) https://doi.org/10.53347/rID-4586
rID:
4586
Article created:
Disclosures:
At the time the article was created Frank Gaillard had no recorded disclosures.
View Frank Gaillard's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Craig Hacking had no recorded disclosures.
View Craig Hacking's current disclosures
Revisions:
4 times, by
3 contributors -
see full revision history and disclosures
Systems:
Sections:
Synonyms:
- Enlarged posterior fossa 'CSF' spaces
- Differential for enlarged posterior fossa 'CSF' spaces
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
References
- 1. Epelman M, Daneman A, Blaser SI, Ortiz-Neira C, Konen O et al. Differential diagnosis of intracranial cystic lesions at head US: correlation with CT and MR imaging. Radiographics. ; 26(1): 173-96. doi:10.1148/rg.261055033 [pubmed citation]
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Cases:
- Blake pouch cyst
- Dandy-Walker malformation
- Dandy-Walker malformation with callosal dysgenesis and atretic occipital cephalocele
- Dandy-Walker malformation with dysgenesis of the corpus callosum and arachnoid cyst
- Mega cisterna magna
- Dandy Walker malformation
- Retro-cerebellar arachnoid cyst
- Dandy-Walker malformation
- Periventricular grey matter heterotopia and arachnoid cyst
- Epidermoid cyst - cerebellopontine angle
- Arachnoid cyst - posterior fossa
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