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FIG 2. Images from the case of a 49-year-old male patient with a basilar tip aneurysm.
A, Angiogram of the left vertebral artery, transfacial projection. The basilar tip aneurysm is packed with GDCs (short arrows). A linear filling defect with hazy margins, consistent with thrombus, is present in the distal basilar artery and extends into the right P1 segment (long arrows).
B, Angiogram of the left vertebral artery, transfacial projection. After 24 hours of heparin infusion, follow-up angiogram obtained after GDC treatment shows resolution of thrombus. However, there is partial recanalization of the aneurysm centrally.
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