Question 2133
This 50-year-old man experienced neck pain, with left pupillary abnormality and swallowing difficulty. An MRI is performed a few days later, with the T1W fat saturated sequence confirming the left internal carotid artery dissection. What is the hyperintensity on the T1FS sequence?
Question 2756
During ultrasound of the neck, the relationship of which two structures is a useful surrogate for the margin between level III and level IV?