Abstract
Neurofibromatosis type 1 (NF-1) is associated with vascular complications, including stenosis or the occlusion of the abdominal aorta and renal arteries. However, reports on the occurrence of extracranial vertebral artery aneurysms are scarce. A man in his 40s had back pain and was feeling unwell. Contrast-enhanced computed tomography revealed a right hemothorax and aneurysms involving the right thyrocervical trunk and at the right vertebral arterial origin. The patient was successfully treated with endovascular embolization and achieved a full recovery. Notably, extracranial vertebral artery aneurysms tend to be detected at a later age compared to other complications such as optic gliomas of NF-1, and endovascular treatment has proven effective for managing these aneurysms.