Transcranial Color-Coded Duplex Sonography in Large-Vessel Vasculitis Compatible With Takayasu Arteritis Presenting Intracranial Involvement and Vertebrobasilar Dolichoectasia: A Case Report.
Maria Júnia Lira E Silva, Jordana Gaudie Gurian, Isabella Mesquita Venâncio et al.
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Case in brief
A 50-year-old woman with progressive large-vessel disease and sequential intracranial occlusions underwent multidisciplinary evaluation, which considered Takayasu arteritis the most likely diagnosis. Transcranial color-coded duplex sonography showed focal stenosis of the intracranial right internal carotid artery and collateral flow through the circle of Willis. The authors considered this collateralization a probable protection against further ischemic events.
What made this case unusual
The case highlights intracranial arterial involvement in a disease that predominantly affects extracranial vessels, with TCCD demonstrating both focal stenosis and circle-of-Willis collateralization.
Diagnostic / clinical pearl
TCCD can identify intracranial stenosis and collateral flow in suspected Takayasu arteritis with intracranial involvement.