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A 69-year-old woman with pulsatile tinnitus.

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Presentation on theme: "A 69-year-old woman with pulsatile tinnitus."— Presentation transcript:

1 A 69-year-old woman with pulsatile tinnitus.
A 69-year-old woman with pulsatile tinnitus. A, DSA, left common carotid injection, lateral view, showing a PTA opacifying the BA. Note the common origin of the left PCA and left AchoA from the distal ICA. B, DSA, left common carotid injection, right anterior oblique view, showing the basilar artery fed by the PTA (arrowhead) and the bilateral absence of connection between the basilar and posterior cerebral arteries. The BA ends into the superior cerebellar arteries distally and into prominent AICA proximally. The left AICA also supplies the left PICA territory. The right PICA territory is fed by the left VA (not shown). There is no visible connection between the VAs and the BA. C, DSA, right subclavian injection, showing opacification of the anterior spinal artery (arrowheads) via the right inferior thyroid artery. I.M. Burger et al. AJNR Am J Neuroradiol 2007;28: ©2007 by American Society of Neuroradiology

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