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. 2020 Nov 6;8(21):5149–5158. doi: 10.12998/wjcc.v8.i21.5149

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©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Preoperative, intraoperative and postoperative imaging of a 54-year-old female patient with a large carotid-ophthalmic aneurysm. A and B: Pre-operative digital subtraction angiography (DSA) in anteroposterior (AP) and lateral (LAT) views: the giant stained aneurysm in the internal carotid-ophthalmic segment was visible, maximal diameter (20.4 mm), neck size (13.4 mm) and dome-neck ratio of 1.6; C and D: First intraoperative DSA (AP and LAT view) showed that the balloon was placed in the aneurysm neck; E and F: Second intraoperative DSA showed that the bulk of the aneurysm was clipped and not visualized, but a small portion of residual aneurysm was visualized; G and H: After adjusting the clips, third intraoperative DSA displayed that the aneurysm was completely clipped, but the parent artery was slightly narrowed due to the severe calcification of the aneurysmal neck.