Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

Prominent aqueduct flow void in normal-pressure hydrocephalus (MRI)

T2-weighted MRI demonstrating a prominent flow void in the aqueduct, comparable with the degree of flow void in the basilar artery. This patient had an excellent response to shunting. (Contributed by Dr. Peter Hedera.)

Related Media

Associated Disorders

  • Carcinomatous meningitis (Leptomeningeal metastasis)
  • Chronic meningitis
  • Elevated CSF protein level
  • Essential tremor
  • Subarachnoid hemorrhage