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KMID : 1037420160110020017
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Journal of Korean Skull Base Society
2016 Volume.11 No. 2 p.17 ~ p.21
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Extracranial Trigeminal Schwannoma Removal via Modified Transzygomatic Approach
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Han Ji-Hyuk
Lee Young-Woo
Kim Jung-Min
Chung Hyo-Jin
Han Su-Jin
Yun Ju-Hyun
Moon In-Seok
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Abstract
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Introduction : Surgical removal of extracranial trigeminal schwannoma has been challenging due to anatomic complexity and rarity of the disease. Transzygomatic approach can be a good option for extracranial trigeminal schwannoma, especially in cases extended to infratemporal fossa, pterygopalatine fossa and parapharyngeal space. Authors report several cases of extracranial trigeminal nerve schwannomas which were treated using modified or combined transzygomatic approaches.
Materials and Methods : 3 patients were diagnosed as extracranial trigeminal schwannoma and underwent surgical removal via modified or combined transzygomatic approach from January 2013 to June 2016. Results : We analyzed the tumor control, complication rate, and origin of tumor. Among 3 patients, combined transzygomatic approach was applied to one patient. It was combined with transcervical approach for the patient. The huge extracranial trigeminal schwannomas were completely excised in all 3 cases. There were no significant complications.
Conclusion : The modified transzygomatic approach is safe and useful for removal of huge extracranial trigeminal schwannoma without facial scar and is easily combined with transcervical approach.
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KEYWORD
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Transzygomatic approach, Trigeminal schwannoma, Transcervical approach
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