Part 1: Ischemic Stroke: Pathophysiology and Principles of Localization

Matthew Brandon Maas, MD, and Joseph E. Safdieh, MD

Dr. Maas is a fellow in Stroke and Neurocritical Care, Harvard Medical School, Departments of Neurology, Massachusetts General and Brigham and Women’s Hospitals, Boston, MA. Dr. Safdieh is an assistant professor of neurology, Department of Neurology and Neuroscience, Weill Medical College of Cornell University, New York, NY.

Question 8

An MRI of the brain is obtained to provide confirmatory evidence for this patient’s condition. Which of the following findings is most consistent with Susac’s syndrome?

  •  Diffuse white matter hyperintensity on fluid attenuation
    inversion recovery (FLAIR) images sparing the subcortical U fibers
  •  Hyperintensity on FLAIR images in the central portion of the
    corpus callosum
  •  Punctate areas of hypointensity on gradient echocardiography images
  •  Sulcal hyperintensity on T2 images
  •  White matter hyperintensity on FLAIR images predominantly
    in the occipital lobes

Updated 9 1/12/2010 • mcf | Copyright ©2013 Turner White Communications