Related Experiment Video
Updated: Apr 15, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Histological Analysis of Aneurysm Wall Occluded with Clip Blades. A Case Report
Takatoshi Hasegawa1, Tetsuyoshi Horiuchi1, Kazuhiro Hongo1
1Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.
Abstract:
Reports on histological changes of vascular wall following clipping surgery have been scarce. The authors experienced a case of unruptured cerebral aneurysm in which the tissue occluded by clip blades for 6 years was obtained and histologically examined. The aneurysmal wall following clipping showed granulomatous inflammation with necrosis, and occluded aneurysmal walls were found with collagenous fibrous tissue. Mild infiltration by lymphocytes and fibrous thickened intima occurred.
More Related Videos
Related Concept Videos
Aneurysm III: Interprofessional Care
Aneurysm I: Introduction

