Combined Arterial and Arteriovenous Aneurysms of the Spinal Cord

Definite proof of subarachnoid hemorrhage was available in only 3 of 50 cases of angiographically demonstrated spinal arteriovenous malformation. In all 3 cases arterial aneurysm was combined with the malformation. An additional patient with angiographic signs of both lesions had symptoms compatible with hemorrhage which was not further documented. The authors review the subject and compare the findings of hemorrhage in brain and cord. Subarachnoid bleeding was found in 75% of reported cases of coexistent arteriovenous malformation and arterial aneurysm of the brain and also in 75% of their cord patients with the combined findings.