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Intraparotid facial nerve schwannoma: A case report
Abhishek Jaiswal1, Asit Ranjan Mridha1, Devajit Nath1
1Abhishek Jaiswal, Ashu Seith Bhalla, Department of Radiodiagnosis, All India Institute Of Medical Sciences, AIIMS, 110029 New Delhi, India.
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 diffusion-weighted MRI could suggest malignant tumours, the characteristic "string sign" provided the clue for the diagnosis of schwannoma.
