Selective Occipital Artery-Posterior Cerebral Artery Bypass Guided by Fusion Imaging and Short-Segment Parent Artery Occlusion for a Partially Thrombosed Posterior Cerebral Artery Aneurysm: A Case Report.

ABSTRACT:

Introduction

Partially thrombosed aneurysms of the posterior cerebral artery (PCA), especially in the P2 segment, pose considerable treatment challenges owing to complex anatomy and ischemic risk.

Case presentation

We report a 49-year-old woman with a partially thrombosed dissecting P2 aneurysm treated using selective occipital artery-PCA bypass guided by digital subtraction angiography-magnetic resonance fusion imaging, followed by endovascular occlusion using Target Tetra coils. Postoperative imaging confirmed bypass patency and complete aneurysm obliteration without infarction or neurological deficit.

Conclusion

We highlight a feasible treatment strategy for complex PCA aneurysms, emphasizing the importance of fusion imaging and targeted embolization in minimizing

SUBMITTER: Yanagawa T 

PROVIDER: S-EPMC12807503 | biostudies-literature | 2026 Jan-Dec

REPOSITORIES: biostudies-literature