1. A 10-year-old boy with symptoms of brain stem compression from a giant partially thrombosed distal vertebral aneurysm.
A 10-year-old boy with symptoms of brain stem compression from a giant partially thrombosed distal vertebral aneurysm. A, Sagittal T1-weighted MR image shows a giant aneurysm with intraluminal thrombus located on the right vertebral artery compressing the brain stem. B, Right vertebral angiogram demonstrates the lumen of the aneurysm of the V4 segment distal to the PICA. C, Left vertebral angiogram shows supply of the posterior circulation with exception of the right PICA territory. D and E, Bilateral vertebral angiogram (D) and nonsubtracted image (E) after coil occlusion of the fusiform V4 aneurysm. Supply to all posterior circulation vessels is preserved. F, Sagittal T1-weighted MR image 6 months later shows reduction in aneurysm size and reduction of mass effect on the brain stem. The patient is asymptomatic.
S.P. Ferns et al. AJNR Am J Neuroradiol 2010;31:
©2010 by American Society of Neuroradiology