A ruptured dissecting aneurysm of the anterior radiculomedullary artery caused by hypoplastic vertebral artery angiography: case report

The occurrence of a ruptured dissecting aneurysm of the anterior radiculomedullary artery induced by vertebral angiography is exceedingly rare. We hypothesize that the sustained high-pressure and high-volume injection of contrast medium was responsible for the arterial dissection and subsequent rupture. During interventional procedures, neurointerventional radiologists should avoid selective angiography of small, hypoplastic vertebral arteries whenever possible to minimize the risk of such complications.