Malignant schwannoma (neurogenic sarcoma).
D000328:Adult; D001706:Biopsy; D003680:Deglutition Disorders / Q000209:etiology; D005354:Fibrosarcoma / Q000473:pathology*; D006258:Head and Neck Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D009442:Neurilemmoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D014630:Vagus Nerve / Q000473:pathology