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Dermoid cyst of the temporal bone of 11-month-old infant, the case report
J Korean Skull Base Soc 2021;16(2):95-99
Published online September 30, 2021
© 2021 Korean Skull Base Society.

Jang Wook Gwak, Jong Woo Chung

Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
Correspondence to: Jong Woo Chung
주소 : Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea
Tel : +82-2-3010-3718
Fax : +82-2-489-2773
E-mail : jwchung@amc.seoul.kr
Received August 20, 2021; Accepted September 10, 2021.
Abstract
A dermoid cyst is a benign congenital cyst that is composed of squamous epithelium and skin appendages. This tumor is uncommon among pediatric patients, and its middle ear cavity involvement is infrequent. An 11-month-old male visited the clinic with a history of recurrent acute otitis media. A whitish mass filling the middle ear cavity was identified from the otoscopic examination. Computed tomography of the temporal bone showed the soft tissue mass similar to congenital cholesteatoma. Mastoidectomy was performed, and histologically the mass was confirmed as a dermoid cyst. Only a few cases of dermoid cysts in the middle ear cavity were reported in Korea and international cases. Although the timing of growth and its clinical manifestation differed, most cases presented pathologic patterns leading to surgical removal of the dermoid cyst. This paper provides the clinical and surgical courses of the case and a review of the literature.
Keywords : Dermoid cyst, Middle ear, Cholesteatoma, Mastoidectomy


September 2021, 16 (2)
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