Two Cases of Malignant Myoepithelioma in Parotid Gland

Korean Journal of Head & Neck Oncology 2002;18(2):211-215.
Published online November 30, 2002.

Seok Beom Kim;Young June Yang;Jung Ho Hwang;Seung Kuk Baek;Yong Bok Kim

이하선에 발생한 악성 근상피종 2예

김석범;양영준;황정호;백승국;김용복

Abstract

A myoepithelial carcinoma, a rare malignant salivary gland neoplasm, occurs mostly in the parotid gland. The incidence of myoepithelioma is less than 1% of all salivary gland tumors, and malignant myoepithelioma is even more rare. Biological behavior of myoepithelial carcinoma has not been fully clarified. Malignant myoepithelioma shows clinicopathologic diversity and presents with various stages of myoepithelial differentiation. The definite treatment for malignant myoepithelioma is surgical excision, and the role of radiation therapy and chemotherapy is not yet established. In this study, we have experienced two patients with malignant myoepithelioma of the parotid gland who were treated with surgical excision.

Key Words: Myoepithelioma, Parotid gland