Epithelial-Myoepithelial Carcinoma of External Auditory Canal Evolving from Pleomorphic Adenoma.
10.7874/kja.2012.16.3.148
- Author:
Jae Wook LEE
1
;
Na Hye MYUNG
;
Myung Whan SUH
Author Information
1. Department of Otolaryngology-Head & Neck Surgery, Dankook University College of Medicine, Cheonan, Korea. drmung@naver.com
- Publication Type:Case Report
- Keywords:
External auditory canal cancer;
Epithelial-myoepithelial carcinoma
- MeSH:
Adenoma, Pleomorphic;
Ear;
Ear Canal;
Female;
Humans;
Neoplasms, Glandular and Epithelial;
Salivary Glands
- From:Korean Journal of Audiology
2012;16(3):148-151
- CountryRepublic of Korea
- Language:English
-
Abstract:
A 45-year-old female patient visited the clinic due to ear fullness. A 8 mm sized mass was found in the external auditory canal. It was surgically removed and the pathology exam confirmed epithelial-myoepithelial carcinoma (EMC). EMC is glandular epithelial neoplasm of the salivary gland. EMC originating from the external auditory canal is very rare, and only 1 case has been reported so far in the literature. The difference between our case and the one previously published was that the tumor was previously proven as a benign tumor (i.e. pleomorphic adenoma) 5 years ago. Therefore, this is the first case in the literature showing the evolvement of pleomorphic adenoma of the external auditory canal into EMC.
