|History: Work up of syncope in a patient with no history of smoking, coronary artery disease or peripheral vascular disease. The past medical history was significant for laryngeal carcinoma treated approximately seven years ago with surgery and external therapeutic neck irradiation.|
|Findings: The history of radiation therapy prompted a doppler ultrasound evaluation of the carotid arteries. The doppler scan revealed concentric hypoechoic low grade stenosis (aprox 40%) of the right carotid bulb and the origin of the internal carotid artery. The digital substraction angiography confirmed the Doppler findings.|
|Diagnosis: Radiation induced stenosis of the carotid artery|
|Discussion: Radiation induced vasculopathy is well known. Patients that undergo neck irradiation are at a five-fold increased risk compared to non-irradiated patients of developing moderate to severe carotid artery stenosis (Moritz arch surg 1990).|
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Case Number: 55543327Last Updated: 2011-10-10 The reader is fully responsible for confirming the accuracy of this content.
The reader is fully responsible for confirming the accuracy of this content.