Bilateral common carotid artery common trunk with aberrant right subclavian artery combined with right subclavian steal syndrome: A case report

Figure 1 Imaging examinations. A: Ultrasound showed that the right vertebral artery had a weak positive contractile peak in early systole (red arrow) followed by a large contractile wave in late systole below baseline (yellow arrow). Diastolic blood flow disappeared (type II right subclavian steal syndrome); B: Right vertebral artery dysplasia (blue arrow).