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KMID : 0361019980410121540
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Korean Journal of Otolaryngology - Head and Neck Surgery
1998 Volume.41 No. 12 p.1540 ~ p.1544
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Partial Temporal Bone Resection for Malignancies of the External Auditory Canal.
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Kim Chong-Sun
Chang Sun-O
Oh Seung-Ha
Koo Ja-Won
Yu Won-Seok
Kim Jeong-Whun
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Abstract
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Background: The primary goal of the treatment of the malignancies of the external auditory canal (EAC) is to remove the primary tumor without recurrence and with maximal preservation of function. En-bloc resection with sufficient safety margin will reduce the recurrence rate, and partial temporal bone resection can achieve preservation of hearing and the facial nerve function when the tumor is confined to the EAC.
Objectibes: Authors reviewed the results of partial temporal bone resection for the malignancies of the EAC performed during the last 15 years.
Material and Methods: Eight patients with malignancies of the EAC operated between 1982 and 1997 in Seoul National University Hospital were reviewed retrospectively. Partial temporal bone resection was performed in all cases and subsequent radiation therapy was followed in 4 cases. The duration of mean follow-up was 3 years and 6 months with the range of 4 months to 14 years.
Results: Seven out of 8 patients showed no evidence of recurrence during the follow-up period. One patient with squamous cell carcinoma showed local recurrence and it was treated with surgical resection. Five year disease-free survival rate was 86%.
Conclusion: Malignant tumors of the EAC with the minimal involvement of surrounding structures can be successfully controlled using partial temporal bone resection with preservation of facial nerve and auditory function.
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KEYWORD
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Ear canal, Cancer, Surgery
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