Breast Malignant Myoepithelioma

**Semantic type:** Neoplastic Process

**Definition:** An invasive malignant tumor that arises from the breast. It is characterized by the presence of spindle-shaped myoepithelial cells. Mitoses are present. Rarely, local recurrences and distant metastases have been reported.

**Synonyms:** - Breast Myoepithelial Carcinoma - Malignant Breast Myoepithelioma