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Dual Vagus Nerve: a Rare Anatomical Entity.
Priyam Mitra1, Aamir Saifi1, Vishal Mishra1
1Oral and Maxillofacial Surgery, Institute of Dental Sciences, Bareilly, Uttar Pradesh India.
Summary
This case report details a rare anatomical variant: duplicate vagus nerves found during neck dissection. Understanding such cranial nerve anomalies is crucial for preventing surgical injury.
Area of Science:
- Anatomy
- Surgical Anatomy
- Neurology
Background:
- Cranial nerve duplication is a rare anatomical variant with few documented cases.
- Accurate anatomical knowledge is vital for preventing iatrogenic injuries during surgical procedures.
Purpose of the Study:
- To report a rare case of duplicate vagus nerves.
- To emphasize the importance of understanding surgical anatomy to avoid inadvertent nerve injury.
Main Methods:
- A case report of a 44-year-old male patient diagnosed with Squamous Cell Carcinoma of the Right Parotid Gland.
- Surgical procedure involved Total Parotidectomy with Elective Neck Dissection.
- Identification of two parallel, independent vagus nerve tracts during carotid sheath microdissection.
Main Results:
- Two vagus nerves, identical in size and thickness, were identified during neck dissection.
- The duplicate nerves were confirmed to be independent structures, not branching segments.
Conclusions:
- This case highlights a rare anatomical variant of duplicate vagus nerves.
- Knowledge of precise surgical anatomy is essential for preventing inadvertent injury to cranial nerves and other vital structures during surgery.
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