RT Journal Article SR Electronic T1 Postangiographic 3D CT Findings of a Thrombosed Dissecting Aneurysm of the Posterior Inferior Cerebellar Artery JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 973 OP 974 VO 25 IS 6 A1 Takatoshi Sorimachi A1 Yukihiko Fujii A1 Takeo Nashimoto A1 Atsuko Harada A1 Yasushi Ito A1 Shigekazu Takeuchi YR 2004 UL http://www.ajnr.org/content/25/6/973.abstract AB Summary: We report a case of a thrombosed dissecting aneurysm of the posterior inferior cerebellar artery with subarachnoid hemorrhage. Although the aneurysmal sac was not shown on an angiogram on the day of the onset, 3D CT performed immediately after angiography revealed the aneurysm. The patient was successfully treated by endovascular occlusion.