The Trigonum nervi vagi is a wing-shaped elevation in the rhomboid fossa. The Trigonum nervi vagi lies caudolateral to the hypoglossal trigone and is caused by the underlying nucleus dorsalis nervi vagi.
References
The Trigonum nervi vagi is a wing-shaped elevation in the Rhomboid fossa.
Anatomy
The Trigonum nervi vagi lies caudolateral to the Hypoglossal nerve trigone