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FIG 1. 35-year-old woman with intractable headache.
A and B, Lateral (A) and oblique right (B) vertebral artery angiograms show a large-neck aneurysm.
C, Right vertebral artery oblique projection demonstrates residual filling after initial attempt.
D, Left vertebral artery injection image after the last embolization session demonstrates persistence of residual filling.
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