Fig 2. Transverse source image from the 2D TOF MRA of the neck at C7 vertebral level showing the vertebral arteries in the foramen transversarium (single vertical arrow points to the right vertebral artery; double vertical arrows point to the left vertebral artery). The duplicated limb on the right (curved arrow) is located intimately medial to the right common carotid artery, whereas the duplicated vessel on the left (transverse arrow) is located posteromedially to the left common carotid artery.