Rare case demonstrating a bifid facial nerve trunk encircling the posterior belly of digastric muscle

Abstract

This case report describes a variation of facial nerve trunk (FNT) to the digastric muscle identified during parotidectomy where the superior temporofacial branch traverses anterior to the posterior belly of digastric muscle (PBD) and the inferior cervicofacial branch traversing through the muscle. The variation has not been described in literature previously.