Patient presents with neck discomfort. No prior trauma, corticosteroid/opiod regimen or carcinoma is report. Prior neck surgery is noted.
Aortic knob & mid thoracic spondylosis is present.
The closeup examination shows a vertical tubular mesh-like density adjacent to the left C1-2 facet joint.
This is DACRON sleeve insertion into the left carotid artery.
ICA dissection is secondary to a tear of the intima. The annual incidence of cranio-cervical dissections is 5 cases/100, 000 patient. 1 Within 6-12 months post surgery, Dacron sleeve are associated with higher incidence of recurrent stenosis. 2