Facial Neurilemmomas: A Study of Four Diverse Cases

Management of Intraparotid Facial Nerve Schwannomas

“…Intraparotid facial nerve schwannoma commonly presents as a parotid mass with or without facial weakness. The parotid mass is almost always painless 3 and slowly increases in size, although painful lesions have been reported, 8 as in two of the cases. The cause could be due to distention of the parotid fascia or obstruction of the parotid duct, as in the first patient.…”

“…It is suspected when the tumour is inseparable from the nerve or when electrical stimulation of the tumour causes facial movement. 8 Frozen section is important because a malignant lesion merits more extensive surgery whereas nerve‐sparing parotidectomy should be attempted in benign cases.…”

Facial Nerve Neuromas

“…(4) They may cause sudden onset of fa¬ cial paralysis simulating Bell palsy. (5) They may maintain electrical ex¬ citability (neuropraxia) for years or recover clinically or electromyographically or both from degeneration.…”

Neurinom des N. petrosus major

“…Es wird spekuliert, daß Fazialisneurinome vom sensorischen Teil des N. facialis (N. intermedius) ausgehen [9,12]. Dies verleitet zu der Annahme, daß es möglich sei, kleine Fazialisneurinome vom Hauptstamm des Nervs abprä-parieren zu können, ohne die Funktion des motorischen N. facialis zu beeinträchtigen [12].…”

“…Bis heute liegen etwa über 200 dokumentierte Fälle vor[1,10]. Die Seltenheit von rein intrakranielle Neurinome wird auch von anderen Autoren bestätigt[9]. Die Hauptsymptome sind Faszialislähmung, Hörminderung und Schwindel[1].…”