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FIG 3. 51-year-old woman with left-sided carotidynia.
A, Axial T1-weighted image (560/15/2) at the level of the distal common carotid artery shows abnormal soft-tissue signal between the carotid and internal jugular vein (arrow).
B, Axial contrast-enhanced T1-weighted image (580/15/2) shows marked enhancement of the abnormal tissue. Note again how the smooth margins of the enhancement extend toward the internal jugular vein, in conformance with the expected borders of the carotid sheath.
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