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Large arteriovenous malformation associated with persistent primitive hypoglossal artery--case report
Neurologia Medico-Chirurgica
|December 1, 1991
Summary
A rare arteriovenous malformation (AVM) with a persistent primitive hypoglossal artery was successfully treated. This case highlights the characteristic involvement of posterior circulation in AVMs with carotid-basilar anastomosis.
Area of Science:
- Neurology
- Vascular Surgery
- Radiology
Background:
- Arteriovenous malformations (AVMs) represent abnormal connections between arteries and veins.
- Persistent primitive hypoglossal artery is a rare congenital vascular anomaly.
- Carotid-basilar anastomosis, a connection between carotid and basilar arteries, is infrequently associated with AVMs.
Observation:
- A 43-year-old male presented with a large arteriovenous malformation (AVM).
- The AVM was associated with a persistent primitive hypoglossal artery.
- The patient's AVM involved the carotid-basilar anastomosis.
Findings:
- The large AVM was treated with staged embolization followed by complete surgical removal.
- While AVMs with carotid-basilar anastomosis are rare, their incidence in patients with this anastomosis is notably high.
- AVMs associated with persistent carotid-basilar anastomosis share no unique features with typical AVMs, except for the characteristic involvement of posterior circulation as a feeder vessel.
Implications:
- This case underscores the importance of recognizing and managing complex AVMs involving rare anatomical variations.
- Understanding the vascular supply, particularly posterior circulation involvement, is crucial for effective treatment planning.
- The findings contribute to the literature on rare cerebrovascular malformations and their management strategies.