Blake pouch cyst: possible

Case contributed by Dr Igor Strahovnik


Chronic headache without neurologic deficits.

Patient Data

Age: 45
Gender: Female
Modality: CT

Dilated supraventricular and 4th ventricles. No signs of acute transependymal flow. 

Modality: MRI


Relatively small infravermian cyst is widely communicating with 4th ventricle with signs of hyper-dynamic liquor flow in 4th ventricle.

Case Discussion

Blake pouch cyst is a cystic appearing structure that represents posterior ballooning of the superior medullary velum into the cisterna magna, below and posterior to the vermis.


Contributor: Dr Luka Turk

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Case Information

rID: 36580
Case created: 30th Apr 2015
Last edited: 19th Dec 2015
Inclusion in quiz mode: Included

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