Schwannome du nerf facial : rapport de 16 cas - 17/09/14
Résumé |
But de la présentation |
To describe the characteristics, diagnosis, management and outcomes of facial nerve schwannomas (FNSs).
Matériel et méthodes |
Patients whose outpatient diagnosis was facial nerve tumor and whose intraoperative identification was FNS between 2002 and 2012 were studied. Preoperative data (audiologic data, facial nerve [FN] function, and patient symptoms, tumor location on imaging data), intraoperative data (total versus subtotal resection, and FN status), and postoperative data (audiologic data, FN function, and recurrence) were collected.
Résultats |
Surgical removal was performed in 16 patients whose FNS were confirmed histologically and 5 patients decided on follow-up. Facial paralysis and hearing loss presented commonly. The FNS involved mostly the geniculate segment, following internal auditory canal. 16 patients were operated on, of them 14 total resection, and 2 subtotal resection. The translabyrinthine approach was performed in 9 cases, the middle fossa approach was performed in 5 cases of which 1 combined with transmastoid approach, and the TM approach was performed in 2 cases. One-stage facial nerve repair was performed in 11 cases, of them 5 facial-hypoglossal nerve anastomosis and 6 sural nerve graft. These patients showed better facial function (mainly HB grades III–IV). Partial removal kept the facial function at grade II.
Conclusion |
The symptoms of FNS are related to its location, the patients complained mainly facial paralysis and hearing loss. MRI is indispensable for the differential diagnosis, subtotal removal may be a better choice for VS-like FNS. One-stage facial repair can give a good FN outcome.
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Vol 131 - N° 4S
P. A144-A145 - octobre 2014 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.