aqueduct stenosis

aqueduct stenosis

Narrowing of the aqueduct of Sylvius between the two central fluid spaces of the brain, the third and fourth ventricles. This is the cause of ‘water on the brain’ (HYDOCEPHALUS) in about one third of cases. There are many causes including ENCEPHALITIS, MENINGITIS, TOXOPLASMOSIS, NEUROFIBROMATOSIS and the Chiari malformation, and it may be genetically induced.
References in periodicals archive ?
Since the indications for ETV are not only permanently increasing, but also constantly adjusting and getting re-tailored [1,2], they nowadays, apart from cerebral aqueduct stenosis, includes many clinical conditions with underlying disturbance of cerebrospinal fluid (CSF) hydrodynamics, such as in patients with posterior fossa tumors and cysts [6], communicating hydrocephalus [7], normal pressure hydrocephalus [8], and in patients with previous ventriculoperitoneal shunts failure [9], but lately also in the hydrocephalic patients with achondroplasia [10].
The most common cause of IVOH is aqueduct stenosis or blockage between the third and fourth ventricles, and this type of stenosis is known as the Dandy-Walker malformation.