Lacrimal Gland Epithelial-Myoepithelial Carcinoma

**Semantic type:** Neoplastic Process

**Definition:** A rare slow-growing carcinoma that arises from the lacrimal gland and is characterized by the presence of duct-like structures lined by two layers of cells; an inner layer composed of epithelial-type cells and an outer layer composed of clear, myoepithelial-type cells.