Zhang ZY, Zhang XY, Lu GZ, Wang SL, Hao JH, Zhang LY. Endovascular electrocoagulation for treating a blister-like microaneurysm with an extremely narrow neck: A case report. World J Clin Cases 2025; 13(32): 111551 [DOI: 10.12998/wjcc.v13.i32.111551]
Corresponding Author of This Article
Li-Yong Zhang, Chief Physician, Department of Neurosurgery, Liaocheng People's Hospital, No. 45 Huashan Road, Economic Development Zone, Dongchangfu District, Liaocheng 252001, Shandong Province, China. 13346256936@163.com
Research Domain of This Article
Surgery
Article-Type of This Article
Case Report
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This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (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. See: http://creativecommons.org/licenses/by-nc/4.0/
Nov 16, 2025 (publication date) through Nov 15, 2025
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Journal Information of This Article
Publication Name
World Journal of Clinical Cases
ISSN
2307-8960
Publisher of This Article
Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA
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Zhang ZY, Zhang XY, Lu GZ, Wang SL, Hao JH, Zhang LY. Endovascular electrocoagulation for treating a blister-like microaneurysm with an extremely narrow neck: A case report. World J Clin Cases 2025; 13(32): 111551 [DOI: 10.12998/wjcc.v13.i32.111551]
Zhi-Yuan Zhang, Guo-Zhang Lu, Shi-Lei Wang, Ji-Heng Hao, Li-Yong Zhang, Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng 252001, Shandong Province, China
Xian-Yi Zhang, Graduate School, Shandong First Medical University, Jinan 250117, Shandong Province, China
Co-first authors: Zhi-Yuan Zhang and Xian-Yi Zhang.
Author contributions: Zhang ZY and Zhang XY contributed to manuscript drafting and data collection; Lu GZ and Wang SL reviewed the literature and analyzed data; Hao JH and Zhang LY revised the manuscript. All the authors have read and approved the final manuscript.
Informed consent statement: The patient provided written informed consent and agreed to the publication of this case report.
Conflict-of-interest statement: All authors declare that they have no conflict of interest.
CARE Checklist (2016) statement: The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).
Open Access: 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. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Li-Yong Zhang, Chief Physician, Department of Neurosurgery, Liaocheng People's Hospital, No. 45 Huashan Road, Economic Development Zone, Dongchangfu District, Liaocheng 252001, Shandong Province, China. 13346256936@163.com
Received: July 3, 2025 Revised: July 20, 2025 Accepted: September 23, 2025 Published online: November 16, 2025 Processing time: 133 Days and 0.5 Hours
Abstract
BACKGROUND
Intracranial blister-like microaneurysms are an extremely rare disease. Rupture of intracranial aneurysms can lead to subarachnoid hemorrhage (SAH). Patients with SAH may experience severe neurological symptoms, including severe headache, nausea, vomiting, transient or persistent loss of consciousness, limb weakness, and blurred vision. Ruptured aneurysms should be surgically treated as soon as possible. Intravascular electrocoagulation is becoming a promising treatment method for intracranial blister-like microaneurysms. The short-term follow-up results demonstrated that this method is safe and effective. This article presents a case of endovascular electrocoagulation for the treatment of a blister-like microaneurysm.
CASE SUMMARY
This article reports the case of 71-year-old female patient with an intracranial aneurysm. The patient experienced a sudden headache with vomiting for 3 hours. Brain computed tomography (CT) scan showed a subarachnoid hemorrhage. She was diagnosed with rupture of an aneurysm and subarachnoid hemorrhage. The aneurysm was located in the choroidal segment of the right internal carotid artery. The size of the aneurysm was 2.00 mm × 1.80 mm × 1.97 mm, and the neck of the aneurysm was less than 0.5 mm wide. We successfully treated this aneurysm with endovascular electrocoagulation, and the patient was safely returned to the ward and discharged after subsequent supportive treatment. CT angiography reexamination 3 months after surgery revealed no contrast agent extravasation in the original lesion, with a good prognosis.
CONCLUSION
Endovascular electrocoagulation is an effective and safe method for the treatment of intracranial blister-like microaneurysms.
Core Tip: Microaneurysms with a diameter of less than 2 mm and a neck of less than 0.5 mm are very rare. This type of microaneurysm is characterized by a small lumen and thin wall and is extremely challenging for surgeons. This article introduces the process of endovascular electrocoagulation for the treatment of aneurysms and provides a feasible solution for the treatment of microaneurysms.
