Incidental ICA aneurysm in a 36-year-old woman.
A, Right ICA angiogram shows a wide-necked supraclinoid aneurysm.
B and C, Follow-up nonsubstracted (B) and substracted (C) angiograms obtained immediately after selective endovascular treatment with liquid embolic show the cast of Onyx (arrow in B), a complete aneurysm occlusion and a nonsignificant ICA stenosis (arrow in C).
D, Follow-up angiogram obtained at 24 months shows stable occlusion of the aneurysm and a discrete ICA stenosis (arrow).