A 42-year-old man presenting with progressive deterioration of consciousness. A 42-year-old man presenting with progressive deterioration of consciousness.

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Presentation transcript:

A 42-year-old man presenting with progressive deterioration of consciousness. A 42-year-old man presenting with progressive deterioration of consciousness. CT angiogram (A) and vertebral angiogram (B) reveal near-occlusion of the basilar artery by an intramural hematoma (arrows). C, After emergency stent insertion, the basilar artery and left posterior cerebral artery are visualized, but the right posterior cerebral artery is not seen on vertebral angiogram. D, A 2-week (not seen) and 18-month follow-up vertebral angiogram show a patent basilar artery and its branches. The patient had a favorable outcome (mRS score, 0). B.M. Kim et al. AJNR Am J Neuroradiol 2008;29:1937-1941 ©2008 by American Society of Neuroradiology