Fig 1. A, MRA in the coronal view shows a voluminous hemangioma in the left neck and parotid, a thin left common carotid artery that ends in the hemangioma (black arrowhead), right common and internal carotid arteries, and a hypoplastic external carotid artery (white arrowhead). Both vertebral arteries show an embryonic state with persistence of cervical segmental arteries (small white arrowhead). Both anterior cerebral arteries arise from the right internal carotid artery. B and C, The left (LVA) and right (RVA) vertebral arteries arise from the subclavian arteries but present an embryonic appearance, with persistence of all the cervical segmental arteries (arrowheads).