What is the role of CT scanning in the workup of cavernous sinus thrombosis (CST)?

Updated: Jul 16, 2018
  • Author: Rahul Sharma, MD, MBA, FACEP; Chief Editor: Barry E Brenner, MD, PhD, FACEP  more...
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Answer

On noncontrast CT, thrombosis of the cavernous sinus can be appreciated as increased density. The introduction of intravenous contrast can reveal filling defects within the cavernous sinus as well as thickening of the superior ophthalmic vein. Nevertheless, CT scan findings may be subtle, and a negative CT scan cannot rule out CST reliably when the clinical suspicion is high.


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