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이충만감을 유발한 외이도 전벽 골 결손 1예

A Case of Bony Defect of the Anterior External Auditory Canal Wall Causing Ear Fullness

대한이비인후과학회지-두경부외과학 2020년 63권 3호 p.129 ~ 133
이종규 ( Lee Jong-Kyou ) - 한림대학교 의과대학 강남성심병원 이비인후-두경부외과학교실

이범상 ( Lee Bum-Sang ) - 한림대학교 의과대학 강남성심병원 이비인후-두경부외과학교실
장수경 ( Jang Soo-Kyung ) - 한림대학교 의과대학 강남성심병원 이비인후-두경부외과학교실
박수경 ( Park Su-Kyoung ) - 한림대학교 의과대학 강남성심병원 이비인후-두경부외과학교실

Abstract


A congenital defect of the anterior wall of the external auditory canal (EAC) is known as foramen of Huschke. The tympanic bone is incompletely developed and has a U shape at birth. The foramen of Huschke closes via continuous bone growth, which occurs before the age of 5 years. A persistent foramen of Huschke is an anatomic variation located in the anteroinferior portion of EAC, which can cause ear discomfort with spontaneous temporomandibular joint (TMJ) herniation into the EAC bony defect. We present a case of 50-year-old man who had a symptomatic TMJ herniation through an osseous defect. The physical examination showed a bulging mass of anterioinferior portion of EAC when the patient closed his mouth, which was retracted when the mouth openned. We report a case of surgical reconstruction of the EAC wall defect, and the foramen of Huschke with titanium mesh via preauricular approach along with literature’s review.

키워드

Congenital abnormality; External auditory canal; Temporomandibular joint
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