Myoepithelial Tumor

**Semantic type:** Neoplastic Process

**Definition:** A benign or malignant tumor characterized by the presence of cells that show myoepithelial differentiation. Based on its morphologic features, it is classified as benign or malignant. A representative example of benign myoepithelioma is benign salivary gland myoepithelioma. Representative examples of malignant myoepithelioma or myoepithelial carcinoma are malignant breast myoepithelioma and salivary gland myoepithelial carcinoma.

**Synonyms:** - Myoepithelial Neoplasm - Myoepithelial Tumor of Soft Tissue - Myoepithelial tumor - Myoepithelioma - Myoepithelioma