52-year-old female with history of epidural hemorrhage. The question of underlying spinal AVM as source.IMAGE ACQUISITIONS: CT angiography of the thoracolumbar spine performed after the administration of 80 cc of Omnipaque 350 IV contrast a rate of 4.5 cc/sec. The aortic arch and origin of the great vessels are unremarkable. There is normal opacification of the intercostal and lumbar arteries. Additionally, there are no abnormal radiculomeningeal or radiculomedullary arterial feeders, enhancing intramedullary nidus, or early prominent medullary venous drainage to suggest spinal arteriovenous malformation or dural arteriovenous fistula.The thoracoabdominal aorta is within normal limits, without evidence of aneurysmal dilatation or significant atherosclerotic calcification. Note is made of a duplicated left renal artery. The visualized portions of the celiac axis, superior and inferior mesenteric arteries, common iliac artery, external and internal iliac arteries are unremarkable
No definite evidence of spinal arteriovenous malformation or spinal dural arteriovenous fistula, please note subtle spinal vascular malformations may remain occult on cross-sectional imaging and if clinical suspicion persists, conventional spinal angiography is recommended.