Author(s): Yang Lu, Zhao Weidong, Liu Quan, Zhang Huankang, Wang Dehui
Pages: 257-262
Year: 2018 Issue:  4
Journal: Chinese Journal of Otorhinolaryngology
Keyword:  Endoscopes; Neurilemmoma; Skull base;
Abstract: Objective To discuss the surgical technique and outcome of nasal skull base schwannoma treated under endonasal endoscope.Methods Fifty-two patients with nasal skull base nonvestibular schwannoma were treated under endonasal endoscope from May 2006 to June 2017 in Shanghai E&ENT Hospital.Of the patients,there were 21 men and 31 women.The age of the patients ranged from 33 to71 years.Schwannoma mainly came from trigeminal nerve.Clinical symptoms included facial numbness,facial pain,nasal obstmction,headache,hypopsia,diplopia and tinnitus.Surgical approaches included pure endonasal endoscope approach (18 cases) and endoscopic endonasal resection asissted with sublabial transmaxillary approach (34 cases).Results Total tumor resection was achieved in 42 patients (80.8％),subtotal resection in 8 patients,and partial resection in 2 patients.The relief rate of facial numbness,facial pain,nasal obstruction,headache,hypopsia,diplopia and tinnitus were 68.8％,45.5％,100.0％,90.0％,60.0％,40.0％ and 100.0％,respectively.During surgery,cerebrospinal fluid leakage was observed in 5 cases.All cases were successfully repaired with a nasoseptal flap or autologous fascia lata and fat obtained from thigh.Four cases with recurrence were observed in the follow-up period (6-134 months).Conclusion Endonasal endoscopic approach is a safe and feasible procedure for schwannoma in nasal cavity,paranasal sinus,orbital apex,pterygopalatine fossa,infratomporal fossa,cavernous sinus and Meckel cave.