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JPTM > Volume 19(1); 2008 > Article
The Korean Journal of Cytopathology 2008;19(1): 52-56.
doi: https://doi.org/10.3338/kjc.2008.19.1.52
Cytologic Features of Epithelial-Myoepithelial Carcinoma Occurring in External Auditory Canal: A Case Report.
Ho chang Lee, Hyung Geun Song, Young Seok Choi, Ok Jun Lee
1Department of Pathology, Chungbuk National University College of Medicine, Cheongju, Korea. ojlee@chungbuk.ac.kr
2Department of Otolaryngology, Chungbuk National University College of Medicine, Cheongju, Korea.
Epithelial-myoepithelial carcinoma (EMC) is a low grade malignant neoplasm that commonly occurs in the parotid gland. Recently, we investigated a case of EMC that occurred in the external auditory canal (EAC) in a 35-year-old male, and this tumor was initially diagnosed as pleomorphic adenoma. The difficulty associated with diagnosing EMC by aspiration cytology arises from both the rare incidence of this tumor and the overlapping spectrum of cytological features found in various salivary gland tumors, such as pleomorphic adenoma, basal cell adenoma and adenoid cystic carcinoma.
Key Words: Epithelial-myoepithelial carcinoma; Pleomorphic adenoma; Cytology