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Bifurcated stenotic aqueduct in fetus

Microscopic view of bifurcated (forked), stenotic aqueduct in 29-week male fetus with ventriculomegaly and intrauterine demise. The branches of the anomalous aqueduct are separated by a band of gliotic tissue indicative of previous injury to the CNS. (Contributed by Dr. Joseph R Siebert.)

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Associated Disorders

  • Chiari type II malformation
  • Rhombencephalosynapsis
  • X-linked aqueductal stenosis