Intra Parotid Facial Nerve Schwannoma: A Case Report

Abstract

Facial nerve schwannoma occurring within the parotid gland is a rare tumour. We report a case of schwannoma within the parotid gland in a young female patient, who underwent ultrasound and magnetic resonance imaging (MRI) and subsequent surgical excision of the lesion. The lesion showed hyperintensity on T2-weighted and diffusion-weighted MRI. There was no adjacent lymphadenopathy. Although hyperintensity on diffusionweighted MRI could suggest malignant tumours, the characteristic "string sign" provided the clue for the diagnosis of schwannoma.

Neurilemmoma of the Parotid Gland

“…Between 25 and 45% of all reported neurilemmomas have occurred in the head and neck region. 5 Presenting The definitive treatment of a neurilemmoma is surgical excision 1 . In these cases, as in our own, we readily identify the nerves; one facial nerve branch-zygomatic branch which was adherent with the cyst was sacrificed.…”