Fig 3. Comparison between angiogram and PMP for the location of case 2 (arrows). Both examinations show an intracavernous aneurysm (neck and sac intracavernous). A, DSA of the left ICA in the lateral view. B, 3D-DSA of the left ICA in the anterior view. C, PMP in the carotid plane (OL indicates optic line; RL, roof line). D, PMP in the diaphragmatic plane (DL indicates diaphragmatic line; CL, clinoid line).