비강에 발생한 상피-근상피암종-면역조직화학 및 전자현미경학적 관찰

초록

Epithelial-myoepithelial carcinoma is a very rare malignant tumor accounting for less than one percent of sa1ivary gland neoplasms. Histologically, the tumor consists of a mixture of trabecular structure with double-layered arrangement of inner ductal cells and outer myoepithelial cells. Immunohistochemistry and electron microscopy confirm dual differentiation toward myoepithelial and ductal cells. We report a 22-year-old man with epithelial-myoepithelial carcinoma arising from nasal cavity, one of the most unusual locations.

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