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Abstract:
Fenestration of the middle cerebral artery (MCA) is an unusual anomaly. We recognized and photographed MCA fenestration during an operation performed to clip an internal carotid artery aneurysm. The incidence of angiographic demonstration of this anomaly has been reported to be 0.26%. The clinical significance of fenestration of the vertebral and basilar arteries has primarily been the relationship of fenestration with other intracranial vascular anomalies. This is the first report of MCA fenestration associated with an aneurysm.
Insights
Fenestration of the middle cerebral artery (MCA) is a rare vascular anomaly. This case report details the first documented instance of MCA fenestration associated with an internal carotid artery aneurysm.
Area of Science:
- Neurology
- Vascular Surgery
- Medical Imaging
Background:
- Fenestration of cerebral arteries is an uncommon vascular anomaly.
- The incidence of angiographically detected fenestration is low, with vertebral and basilar artery fenestrations being more frequently reported.
- Clinical significance often relates to associated intracranial vascular anomalies.
Observation:
- Middle cerebral artery (MCA) fenestration was identified during surgery for an internal carotid artery aneurysm.
- The anomaly was visually confirmed and photographed.
- This represents a unique intraoperative finding.
Findings:
- The reported incidence of MCA fenestration is approximately 0.26% based on angiographic studies.
- This is the first reported case of MCA fenestration occurring concurrently with an internal carotid artery aneurysm.
- The co-occurrence highlights potential associations between different cerebrovascular malformations.
Implications:
- This finding expands the known spectrum of intracranial vascular anomalies.
- It suggests a possible link between MCA fenestration and aneurysms, warranting further investigation.
- Understanding these associations is crucial for surgical planning and risk assessment in neurovascular patients.