cerebral aqueduct


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Noun1.cerebral aqueduct - a canal connecting the third and fourth ventriclescerebral aqueduct - a canal connecting the third and fourth ventricles
duct, epithelial duct, canal, channel - a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"
References in periodicals archive ?
Major radiological diagnosis was leukodystrophy in 30% patients followed by cerebral atrophy in 16% patients, congenital malformation (agenesis of corpus callosum, hydrocephalus, dandy walker variant, cerebral aqueduct stenosis etc) in 15% patients and nonspecific findings (basal ganglia calcifications, arachnoid cysts, hemorrhagic infarct) in 6% patients.
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 cerebral aqueduct, an anatomically restricted access of the ventricular system, is lined with ependymal cells expressing AQP4 and inflammatory sequelae of IgG binding to AQP4 and it is thought that this is the region where scarring, occlusion, stenosis, or reduced compliance of the aqueductal channel leading to obstruction occurs [19].