Presentation
Chronic headache without neurologic deficits.
Patient Data
Age: 45 years
Gender: Female
From the case:
Blake's pouch cyst
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Dilated supratentorial ventricles and 4th ventricle. No signs of acute transependymal flow.
From the case:
Blake's pouch cyst
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Hydrocephalus.
Relatively small infravermian cyst widely communicating with 4th ventricle with signs of hyperdynamic liquor flow in 4th ventricle. Notice a small membrane in the floor of the suspected Blake pouch cyst and mild elevation of the tentorium. Choroid plexus mildly extends into superior cyst wall.
Case Discussion
Blake pouch cyst is a cystic appearing structure that represents posterior ballooning of the inferior medullary velum into the cisterna magna, below and posterior to the vermis.
Contributor: Dr Luka Turk
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