Meaning of aqueduct of Sylvius in English:

aqueduct of Sylvius

Pronunciation /ˈsɪlvɪəs/


  • A fluid-filled canal which runs through the midbrain connecting the third and fourth ventricles.

    Also called cerebral aqueduct

    ‘Coronal sectioning of the brain revealed mild enlargement of the lateral and third ventricles and the aqueduct of Sylvius.’
    • ‘From this midline cavity, CSF continues through the aqueduct of Sylvius into the fourth ventricle, situated within the posterior fossa.’
    • ‘In the midbrain, the aqueduct of Sylvius was slitlike.’
    • ‘Subsequent magnetic resonance imaging revealed a mass measuring 5 x 4 x 4.1 cm in the region of the pineal gland and obstructing the aqueduct of Sylvius with resultant hydrocephalus.’
    • ‘Consequently, hydrocephalus develops due to blockage of CSF outflow at the level of the aqueduct of Sylvius or the basal cisterns.’