The Mouse Adult Gross Anatomy Ontology and Mammalian Phenotype Ontology are downloaded weekly from the Mouse Genome Informatics databases at Jackson Laboratories (ftp://ftp.informatics.jax.org/pub/reports/index.html). For more information about these ontologies, see the MGI Publications Page at http://www.informatics.jax.org/mgihome/other/publications.shtml.
abnormal narrowing or constriction of the cerebral aqueduct that blocks the flow of cerebrospinal fluid (CSF) in the ventricular system
Comment:
Blockage of the cerebral aqueduct can lead to hydrocephalus, specifically as a common cause of congenital and/or obstructive hydrocephalus. {xref="https://www.chop.edu/conditions-diseases/hydrocephalus", comment="https://en.wikipedia.org/wiki/Aqueductal_stenosis"}
Synonyms:
exact_synonym:
Aqueductal stenosis; aqueduct of Sylvius stenosis; aqueduct of midbrain stenosis; cerebral aqueduct stenosis; mesencephalic duct stenosis; stenosis of midbrain cerebral aqueduct