CT Brain - Acute infarct - Dense MCA and insular ribbon signs

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CT brain - insular ribbon/dense MCA sign

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CT Brain - Dense MCA and insular ribbon signs

  • The right MCA is dense (white) due to the presence of an acute thrombus
  • The right insular ribbon is not clearly visible - compare with left side which is normal
  • Both of these findings are signs of acute infarction

Clinical features

  • Sudden onset left hemiparesis

Page author: Salisbury NHS Foundation Trust UK (Read bio)

Last reviewed: October 2019