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Case 12. Av CT scan showed relative high-intensity at the right basal cistern. B) A 3D angiogram showed the large aneurysm at the right PCA. C) Endosaccular palliative embolization of the aneurysm with the patency of the parent PCA. D) 4 months later, another angiogram showed the enlarged aneurysm and compaction of the coil mass. E) Angiogram showed the proximal embolization of the parent artery and no residual flow to the aneurysm.
