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소뇌교각의 해면혈관기형을 부분적 미로절제술로 제거하여 청력 보존된 1례
고범준(Bum Jun Ko),김대윤(Dae Yoon Kim),김한규(Han Kyu Kim),안윤숙(Yun Suk An) 대한두개저학회 2015 대한두개저학회지 Vol.10 No.2
Currently, there are numerous ways of approaching cerebellopontine masses. Operators aiming to remove these masses should choose a method considering the size and the position of the masses. Historically, in select of normal hearing patient, surgical approaches sacrificing the patient’s hearing was avoided. However nowadays, safe plugging of semicircular canals is feasible and partial labyrinthectomy is successfully done preserving patient s hearing at the same time. So called transcrusal approach is not widely used so far, moreover on our acknowledgement there was no case reported removing cerebellopontine angle mass through this method in Korea yet. We report a case of 28 year old male patient with cerebellopontine angle caverneous malformation, removed by transcrusal approach while preserving the patient s hearing and having no further complications.
2형 신경섬유종증 환자에서 청각뇌간 이식을 시행 받은 29세 여환 1례
고범준(Bum Jun Ko),성한경(Han Kyung Sung),김한규(Han Kyu Kim),안윤숙(Yun Suk An) 대한두개저학회 2017 대한두개저학회지 Vol.12 No.1
Auditory brainstem implants (ABI) are designed to be applied in patients with lesions occurring between the cochlear and cochlear nuclei. As ABI were not widely performed in Korea so far, here we report a case of ABI. A 29-year-old woman, diagnosed of neurofibromatosis type II(NF2), who previously took right acoustic schwannoma removal via retrosigmoid approach and thoracic spinal Schwannoma removal , had severe bilateral hearing loss. Right side was deaf and left side pure tone average was 75dB. On auditory brainstem response test, both sides showed no response. Brain magnetic resonance imaging revealed 3cm , 3.5cm sized extra axial masses at bilateral cerebellopontine angle (Right, left consecutively). By tranlabyrinthine approach we co-operated with Neurosurgery department and removed the tumor on the left side and placed the electrode array near the lateral recess of 4th ventricle. After the surgery, we are closely observing the patient with continuous mapping of the ABI.
소뇌교각 거미막낭에 대한 수술로 회복된 일측성 돌발성 난청
성한경(Han Kyung Sung),고범준(Bum Jun Ko),신승훈(Seung-Hun Sheen),박세라(Se Ra Park) 대한두개저학회 2017 대한두개저학회지 Vol.12 No.1
Sudden sensorineural hearing loss(SSNHL) is a common clinical disease in otolaryngology. In many cases, the causes of sudden hearing loss cannot be determined, but a cerebello-pontine angle (CPA) mass, such as an arachnoid cyst, is one of them. Arachnoid cysts are usually asymptomaic; however, when they have mass-effect, they may present with symptoms such as dizziness, tinnitus and hearing loss. The authors report a case of a 63 year-old male who presented with sudden hearing loss linked to a CPA arachnoid cyst. The patient underwent a retromastoid suboccipital craniotomy with fenestration of the arachnoid cyst to get rid of his neurological symptoms and hearing loss which did not respond to medical treatments. After the surgery the patient s hearing was recovered and other symptoms disappeared.