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Updated: May 2, 2026

Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.
Published on: January 27, 2015
Ruptured venous aneurysm of cervicomedullary junction
Ashish Aggarwal1, Pravin Salunke1, Sameer Futane1
1Department of Neurosurgery, PGIMER, Chandigarh, India.
Background:
Ruptured venous aneurysm is often seen with arterio-venous malformation (AVM) or developmental venous anomaly (DVA). However, isolated venous aneurysm is unusual.
Case Description:
We present a case of ruptured venous aneurysm that presented with subarachnoid hemorrhage (SAH) and intraventricular hemorrhage (IVH). Digital substraction angiography (DSA) revealed a saccular contrast filling pouch in the left lateral aspect of cervicomedullary junction (CMJ). Endovascular intervention was not a viable option. During surgery, a saccular pliable structure approx. 1.5 × 1 cm was found in the subarachnoid space that was clipped and excised. There were no arterial feeders, no evidence of surrounding AVM, and no dilated perimedullary vein.
Conclusion:
This is perhaps the first reported case of ruptured venous aneurysm (without associated AVM) of CMJ, which was successfully managed surgically. The possible etiologies remain an unnoticed head trauma or a congenital vessel wall abnormality. Surgically clipping and excision remains the treatment of choice for such lesion.
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