外耳道外骨腫症例
1981 年 27 巻 3 号 p. 505-509
詳細
1981 年 27 巻 3 号 p. 505-509
A case of exostosis of the external auditory canal was reported.
A 17-year-old boy, complaining of hearing loss and sensation of obstruction in his right ear, visited to our clinic. Examination revealed a complete occulusion of external auditory canal by a mass of bone-like tissue. The mass was surgically removed and was found to be originating from the tympanic bone. Histopathological examination of surgical specimens showed an exostosis from external auditory canal. After surgical removal of the exostosis, his hearing acuity regained to a satisfactory extent.
