Spontaneous Resolution of Dissecting Aneurysm of the Vertebral Artery

Kang, Suk Hyung; Suk, Jong Sik; Min, Byung Kook; Kwon, Jeong Taik; Yeo, Sang Jun

Abstract

Although dissecting aneurysm of vertebral artery were once thought to be extremely rare, they are now recognized with increasing frequency by dint of aggressive work-up using sophisticated imaging techniques. Vertebral dissection most commonly result from cervical hyperextension and lateral cervical rotation. Our two cases followed suit respectively and presented with ischemic symptoms. The vertebral angiogram demonstrated a pseudoaneurysm at the site of dissection in both cases. Presence or absence of SAH, size of dissection and incorporation of the PICA into dissection greatly have influence upon the outcome after treatment. The authors report two cases of dissecting aneurysm of vertebral artery, in which complete resolution of the pseudoaneurysm was spontaneously achieved following conservative management.