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KMID : 0361020000430040373
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Korean Journal of Otolaryngology - Head and Neck Surgery
2000 Volume.43 No. 4 p.373 ~ p.376
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Osteoma of the External Auditory Canal
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Nam Boo-Hyun
Jang Jae-Woong
Byun Sang-Nae
Park Chan-Il
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Abstract
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Background and Objectives : Osteoma of the external auditory canal is an uncommon benign lesion and
represents as a unilateral pedunculated mass in the outer half of the bony canal. The aim of this study is
to evaluate the clinical, histopathological characteristics of osteoma and its treatment outcomes.
Material and Methods : We have operated 9 patients who visited Chungnam National University Hospital
in the past 10 years with the complaints of osteoma arising from the external auditory canal. The medical
records were retrospectively reviewed with regard to clinical characteristics, surgical findings,
histopathological features and treatment outcomes.
Results : One patient showed regrowth of the tumor after surgery and CT scans demonstrated a hidden
lobe embedded in soft tissue of the bony-cartilaginous junction. Five patients have had no connection with
regard to tympanosquamous or tympanomastoid suture line, which had been known as the predilection
site.
Conclusion : Osteoma of the external auditory canal is a distinct benign tumor which can be removed
easily. A precise preoperative evaluation of the extent of the tumor and a complete surgical removal under
adequate exposure is the best way to ensure no recurrence or complication.
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KEYWORD
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Osteoma, External auditory canal, Recurrence
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