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Updated: Feb 13, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Duplicated middle cerebral artery origin with an aneurysm
Hecheng Ren1, Lin Ma, Ming Wei
1Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China.
Rare middle cerebral artery (MCA) anomalies can lead to aneurysms. This case highlights a duplicated MCA origin with an aneurysm, treated successfully with endovascular embolization, emphasizing the importance of recognizing complex angioarchitecture.
Area of Science:
- Neurology
- Vascular Surgery
- Radiology
Background:
- Middle cerebral artery (MCA) anomalies are uncommon and frequently associated with aneurysms.
- Understanding these anomalies is crucial for managing complex cerebrovascular cases.
- Aneurysms linked to accessory or duplicated MCA typically occur at their origin.
Observation:
- A 59-year-old male presented with a 10-day headache.
- CT revealed an intracerebral hematoma in the right frontal lobe.
- DSA identified a duplicated right MCA origin with an aneurysm on the accessory trunk.
Findings:
- A ruptured aneurysm associated with a duplicated MCA origin was diagnosed.
- The patient opted for endovascular coil embolization over open surgery.
- Postoperative recovery was uneventful with no rebleeding at 8-month follow-up.
Implications:
- MCA anomalies are rare but significant, often presenting with complex vascular lesions.
- Familiarity with anomalous MCA angioarchitecture is essential for effective diagnosis and treatment.
- Aneurysms arising from anomalous MCA trunks are rare and may necessitate surgical consideration.
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