Histologic sections of high-grade myoepithelial carcinoma (hematoxylin and eosin stain). Left, Invasive nests and cords of malignant myoepithelial cells with prominent eosinophilic basal lamina (100×). Middle, High-grade features are prominent, including nuclear pleomorphism, increased mitotic activity, atypical mitoses (arrow), and necrosis (∗) (200×). Right, Metastatic myoepithelial carcinoma to a neck lymph node (100×).