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Ruptured arteriovenous malformation in the auditory nerve: technical case report
Soichi Oya1, Toru Matsui, Akio Asai
1Department of Neurosurgery, Saitama Medical Center/School, Saitama, Japan. sooya-tky@umin.ac.jp
Neurosurgery
|May 28, 2005
Summary
This is the first reported case of an arteriovenous malformation in the auditory nerve, a rare condition causing subarachnoid hemorrhage. The findings suggest a specific embryogenesis timing for these cranial nerve malformations.
Area of Science:
- Neurology
- Vascular Malformations
Background:
- Arteriovenous malformations (AVMs) are rare vascular anomalies.
- Cranial nerve AVMs are exceptionally rare, with limited documented cases.
Observation:
- A 30-year-old female presented with subarachnoid hemorrhage.
- The hemorrhage originated from a ruptured arteriovenous malformation within the auditory nerve.
Findings:
- Surgical exploration revealed severe damage to the auditory nerve bundle.
- An arteriovenous malformation nidus was identified within the auditory nerve bundle.
Implications:
- This case represents the first documented instance of an auditory nerve arteriovenous malformation.
- The findings may refine understanding of cranial nerve embryogenesis and AVM development timelines.