May 1, 1994

Large ependymal cyst of the cerebello-pontine angle in a child

Brain & Development
H NakaseJ Karasawa


Most ependymal cysts occur intracerebrally, with a few cases situated in the subarachnoid space. The cerebellopontine angle is a common site for arachnoid cysts, but a very rare site for ependymal cysts. A case is described here of a large ependymal cyst in the cerebellopontine angle. A 12-year-old girl with left hearing disturbance was admitted. CT and MRI revealed a cystic tumor in the left cerebellopontine angle. At operation, we obtained a discrete thin-walled cyst which had arisen from a continuation of the choroid plexus of the lateral foramen of Luschka, which had no connection with the arachnoid. The cyst proved to be an ependymal cyst.

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Mentioned in this Paper

Cerebellar Diseases
Entire Choroid Plexus
Choroid Plexus of Cerebral Hemisphere
Lateral Aperture of Fourth Ventricle
Arachnoid Mater
Arachnoid Cysts
Pontine Structure
Compound A 12
Structure of Cerebellopontine Angle
SpecimenType - Cyst

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