A 58-year-old woman visited our department for paresthesia of the left occipital area and right arm, and intermittent weakness in both legs. CT angiography showed a right duplicated VA originating from the right subclavian artery. Axial CT demonstrated that the medial limb of the duplicated VA was located posteriorly 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 (). The patient was managed conservatively, and her clinical symptoms 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.