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Clinical Features of External Auditory Canal Benign Tumors According to Pathologic Findings
Dept. of Otorhinolaryngology-Head and Neck Surgery, Korea Univ. College of Medicine, Seoul, Korea
Hwaejoon JUNG, Hwaejoon JUNG
¸ñÀû: The features of tumor arising from external auditory canal has not been investigated with abundant sample size before. The purpose of this study is to compare the clinical features of patients who underwent surgery for an external auditory canal mass confirmed as a benign lesion. ¹æ¹ý:This study was conducted retroprospectively at the Department of Otorhinolaryngology-Head and Neck Surgery, Guro Hospital, Korea University College of Medicine, Seoul, Korea. Between October 2006 and January 2015, Sixty-eight patients was included, who all unederwent surgical excision for external auditory mass and followed up outpatient clinics over six months in postoperative period. And we analyzed the characteristics pathologic type, incidence, recurrence, age, gender and affected side of ear. °á°ú:Of the 68 patients, 35 males(51.5%) and 33 females(48.5%) between the ages of 3 and 75 years were included in the study. The mean age of the patients was 55.2 7.8 yers. And the most common pathologic types were intradermal nevus(19patients, 27.94%), epidermal cyst(11patients, 16.17%), and osteoma(9patients, 13.23%). No signicant differences were found in terms of gender, involved side. The overall recurrence rate after excision was 7.35% and higher in fibroepithelial polyp(1 of 1, 100%), intraepidermal pilar epithelioma(1 of 1, 100%), chronic inflammation(1 of 6patients, 16.67%). Recurrent lesions were all re- excised and there was one case in fibroepithelial polyp group, who recurred twice so exhibited surgical procedures three times. °á·Ð:Our results suggested intradermal nevus was the most common pathologic type in external auditory canal benign tumors and overall recurrence rate was 7.35%. But the recurrence rate was higher in chronic inflammation, fibroepithelial polyp, intraepidermal pilar epithelioma, so in these cases close observation should be needed in postoperative period.


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