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  • Title: [Removal of Schwannoma in the pterygopalatine and infratemporal fossa via endoscopic prelacrimal recess approach].
    Author: Zhou B, Huang Q, Cui SJ, Wang CS, Li YC, Yu ZK, Chen XH, Ye T.
    Journal: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2013 Oct; 48(10):802-6. PubMed ID: 24406175.
    Abstract:
    OBJECTIVE: To sum up and analyze the results of surgical removal of Schwannoma in the pterygopalatine and infratemporal fossa (PPF and ITF) through postero-lateral wall via prelacrimal recess approach (PLRA). The surgical technique and indications were presented and discussed. METHODS: Six patients aged from 29-59 year-old with Schwannoma in the PPF and ITF, who received the tumor resection via PLRA under endoscope, were enrolled in this paper. Three were female and 3 were male. All of them received preoperative CT and MRI. The PPF and ITF were approached via prelacrimal recess endoscopically under general anesthesia. Schwannoma was histopathologically confirmed after surgery. The postoperative periodical CT and MRI follow up was conducted. RESULTS: The tumors were removed completely in these 6 patients. No recurrence was found during 19.3 months follow up on the average. Three patients had obvious numbness in the V2 innervation area 1 or 2 weeks after operation and disappeared afterwards. Only 1 patient had mild altercation numbness at the end of follow up. CONCLUSIONS: Schwannoma involved PPF and ITF can be removed endoscopically via PLRA. The lateral wall of nasal cavity might be kept intact. It is a novel minimally transnasal invasive approach to PPF and ITF with less damage and complications.
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