Korean J Audiol.  2012 Dec;16(3):148-151. 10.7874/kja.2012.16.3.148.

Epithelial-Myoepithelial Carcinoma of External Auditory Canal Evolving from Pleomorphic Adenoma

Affiliations
  • 1Department of Otolaryngology-Head & Neck Surgery, Dankook University College of Medicine, Cheonan, Korea. drmung@naver.com
  • 2Department of Pathology, Dankook University College of Medicine, Cheonan, Korea.

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.

Keyword

External auditory canal cancer; Epithelial-myoepithelial carcinoma

MeSH Terms

Adenoma, Pleomorphic
Ear
Ear Canal
Female
Humans
Neoplasms, Glandular and Epithelial
Salivary Glands
Full Text Links
  • KJA
Actions
Cited
CITED
export Copy
Close
Share
  • Twitter
  • Facebook
Similar articles
    DB Error: unknown error