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[Arteriovenous malformation associated with meningioma]
C Kadoya1, H Kajiwara, T Soejima
1Department of Neurosurgery, University of Occupational and Environmental Health, Kitakyushu, Japan.
Abstract:
A case of arteriovenous malformation (AVM) associated with a meningioma is reported. A 28-year-old woman was hospitalized for generalized convulsion. CT scan and right carotid angiogram revealed AVM in the right parietal lobe extending to the wall of the lateral ventricle. At the time of surgery an intraventricular meningioma attached to the choroid plexus was found in the excised cavity of the AVM. It is suggested that the meningioma might have been caused by chronic irritation due to an increased blood flow in the arteries supplying the AVM, because the AVM and the meningioma exist in the same lesion and share the same blood supply.
Insights
This case report details an unusual arteriovenous malformation (AVM) co-occurring with a meningioma. Researchers suggest chronic irritation from the AVM
Area of Science:
- Neurology
- Neurosurgery
- Pathology
Background:
- Arteriovenous malformations (AVMs) are congenital vascular anomalies.
- Meningiomas are typically benign tumors arising from the meninges.
Observation:
- A 28-year-old woman presented with generalized convulsions.
- Imaging revealed a right parietal lobe arteriovenous malformation (AVM).
- Intraoperative findings identified an intraventricular meningioma within the AVM's excised cavity.
Findings:
- The arteriovenous malformation (AVM) and meningioma shared the same lesion and blood supply.
- A potential causal link between the AVM and meningioma development was proposed.
Implications:
- This case suggests a possible mechanism for meningioma formation secondary to chronic vascular irritation from AVMs.
- Highlights the importance of considering co-existing pathologies in complex neurological cases.