Acute hydrocephalus from VP shunt blockage
VP shunt in situ for hydrocephalus. Know posterior fossa mass - thought to be a meningioma. Headaches in recent days.
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Left parietal VP shunt with the tip in the body of the right lateral ventricle.
5.2cm near isodense mass at the right cerebellopontine angle causing almost complete effacement of the 4th ventricle.
Moderate-severe resultant hydrocephalus.
Extensive periventricular low attenuation in keeping trans-ependymal oedema.
On clinical examination, the patients subcutaneous port from the VP shunt was non-compressible in keeping with shunt blockage.
This is a good example of trans-ependymal oedema from CSF exudation in the context of hydrocephalus.
In this case despite the VP shunt as it is no longer functional.