Case Report
Bilateral Vertebral Artery Dissection: A Case Report with Literature Review
Figure 3
Cerebral angiography showing a dissection flap extending across the C1 loop and to the foramen magnum. Subintimal clot is seen medially in the vessel wall with 50% loss of lumen in the V4 segment. This abrupt change in the caliber of the left vertebral artery shows dissection.