Related Experiment Video
Updated: Jan 1, 2026

18:50
Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
14.0K
Ruptured anomalous hyperplastic anterior choroidal artery aneurysm: a case report
Takashi Mitsuhashi1, Hidenori Oishi2,3, Kohsuke Teranishi2
1Department of Neurosurgery, Juntendo University Nerima Hospital, Tokyo, Japan.
British Journal of Neurosurgery
|December 15, 2019
Summary
A rare case of a ruptured aneurysm from an anomalous hyperplastic anterior choroidal artery was successfully treated with endovascular embolization. Understanding this rare vascular anomaly is crucial for neurosurgical procedures.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Embryology
Background:
- The anterior choroidal artery is vital for supplying critical brain structures.
- Intracranial vascular diseases require precise anatomical understanding for effective treatment.
Observation:
- A 48-year-old male patient presented with subarachnoid hemorrhage due to a ruptured aneurysm.
- The aneurysm originated from an anomalous, hyperplastic anterior choroidal artery.
Findings:
- Endovascular treatment was successfully performed, achieving embolization with a neck remnant.
- This case highlights a rare anatomical variation of the anterior choroidal artery.
Implications:
- Recognition of anomalous anterior choroidal artery anatomy is essential for surgical planning.
- Embryological insights aid in understanding and managing such rare vascular anomalies.
- Successful endovascular embolization offers a minimally invasive treatment option for these aneurysms.

