A 38-year-old woman was referred to our department because of dizziness. CT angiography demonstrated an incidental right duplicated VA originating from the right subclavian artery. Axial CT showed that the medial limb of the duplicated VA was located posteromedially to the right CCA and anteriorly to the vertebral transverse foramen. Sagittal CT revealed that the medial limb of the duplicated VA was located in close proximity to the CCA and internal carotid artery (). The patient was managed conservatively, and her dizziness improved.
A 35-year-old man with left occipital pain underwent CT angiography. Reconstructed CT angiography showed a left duplicated VA originating from the left subclavian artery and aortic arch. Axial CT demonstrated that the medial limb of the duplicated VA was located anteriorly to the vertebral transverse foramen and medially to the CCA (). The patient’s symptom was relieved after conservative management.