Neurotologic Analysis of Cerebellopontine Angle Tumor.
- Author:
Yun Woo LEE
1
;
Kang Dae LEE
;
Tai Hyun YU
;
Han Kyu KIM
Author Information
1. Department of Otolaryngology, College of Medicine, Kosin University, Pusan, Korea. ynwlee@nuri.net
- Publication Type:Original Article
- Keywords:
Cerebellopontine angle tumor;
Acoustic neuroma;
Translabyrinthine approach;
Modified translabyrinthine approach;
Transcochlear approach
- MeSH:
Cerebellopontine Angle*;
Early Diagnosis;
Facial Nerve;
Hearing;
Humans;
Magnetic Resonance Imaging;
Neuroma, Acoustic*;
Speech Perception
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
1998;41(4):454-460
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: The authors performed seven removal operations cerebellopontine angle tumor, six of which were acoustic neuroma. The purpose of this research is to analyze different cases of cerebellopontine angle tumor, determine their clinical characteristics, and evaluate the efficacy of various surgical approaches. MATERIALS AND METHODS: We performed neurotological analysis of both clinical characteristics and the results of each surgical approach for seven patients who have been treated for cerebellopontine angle tumor. RESULTS: The most frequent symptom was the complaint of hearing disturbance, where the mean PTAs measured were 66 dB, and the mean speech discrimination score was 35%. The average size of tumors measured by MRI was 3.9 cm. The following surgical approaches were used: translabyrinthine in 4 cases, modified translabyrinthine in 2 cases, transcochlear in one case. Complete removal of the tumor was possible in six patients. Facial nerve was preserved anatomically in six patients, and hearing preservation was possible in one patient for whom we performed the modified translabyrinthine approach. CONCLUSION: Early diagnosis and treatment is important in order to improve the facial nerve function after the operation. The modified translabyrinthine approach is worth performing for hearing preservation.
