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Korean Journal of Otorhinolaryngology-Head and Neck Surgery > Volume 22(4); 1979 > Article
Korean Journal of Otorhinolaryngology-Head and Neck Surgery 1979;22(4): 42-4.
A Case of Huge Retroauricular Epidermoid Cyst
Jeong Ae Hong, MD, Jong Ouck Choi, MD, and Jae Hoon Park, MD
Department of Otolaryngology, National Medical Center, Korea
外耳道로 瘻孔을 形成한 耳後部 表皮樣囊腫 1例
홍정애 · 최종욱 · 박재훈
國立醫療院 耳鼻咽喉科

An epidermoid cyst, so called pseudocholesteatoma, is the most common form of epithelial cysts, which contain cholesterin in it. If the cyst has infection, it can drain out through the skin. Recently authors experienced a huge epidermoid cyst on the retroauricular region with 3 fistulae on the retroaural skin and fistulous tract in the external auditory canal through the Santorini's incisura. It takes place anteriorly to narrow space below the parotid gland including facial nerve and inferiorly spreaded to the carotid bifurcation.

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