A typical example of cerebral watershed infarct

  • Ina Juergenson | ina.juergenson@gmx.de Department of Neurological, Neuropsychological, Morphological and Movement Sciences, University of Verona, Italy.
  • Sara Mazzucco Department of Neurological, Neuropsychological, Morphological and Movement Sciences, University of Verona, Italy.
  • Michele Tinazzi Department of Neurological, Neuropsychological, Morphological and Movement Sciences, University of Verona, Italy.

Abstract

Watershed infarcts (WI) evolve in hemodynamic risk zones. Clinical picture of WI can be associated to partial epileptic seizures. Diffusion weighted brain magnetic resonance imaging (MRI) allows a clear diagnosis. WI pathogenesis involves either embolic or hemodynamic mechanism. A 69-year old patient presented with sub-acute occurrence of right hemiparesis and partial epileptic seizures of the right arm. Carotid ultrasounds demonstrated occlusion of the right extra-cranial internal carotid artery (ICA) and tight stenosis of the contralateral ICA. Brain Diffusion-Weighted magnetic resonance revealed acute ischemic lesions within the watershed area of the left hemisphere. Our case supports the hypothesis of impaired washout of emboli in low-perfusion brain areas as the mechanism underlying cortical WI.

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Published
2011-11-18
Section
Case Reports
Keywords:
watershed infarct, carotid atherosclerosis, carotid ultrasounds, Diffusion-Weighted Magnetic Resonance.
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How to Cite
Juergenson, I., Mazzucco, S., & Tinazzi, M. (2011). A typical example of cerebral watershed infarct. Clinics and Practice, 1(4), e114. https://doi.org/10.4081/cp.2011.e114