122

FIGURE 122-1

FIGURE 122-2

FIGURE 122-3

FIGURE 122-4

FIGURE 122-5

FIGURE 122-6

FIGURE 122-7

FINDINGS Figure 122-1. Lateral CT scout view of the skull. There is a metallic density posterosuperiorly to the dorsum sella (arrow) consistent with aneurysm coil. Figure 122-2. Axial MIP CTA through the level of the coil. There are extensive streak artifacts (arrow) at the site of the coil preventing assessment of completeness of the aneurysm coiling and other structures in the vicinity. The NCCT (not shown) shows similar streak artifacts. Figures 122-3 and 122-4. Axial MR GRE and T2WI through the coil within the interpeduncular cistern. There is a round hypointense mass within the interpeduncular cistern (arrows) on both the GRE and the T2WI. There is no surrounding artifact. Figure 122-5

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