Myoepithelioma, also known as mixed tumor of soft tissue, is a rare benign or malignant neoplasm that arises from myoepithelial cells, which are found in various tissues throughout the body. These tumors can occur in different locations, such as the salivary glands, skin, and soft tissues. The clinical presentation and behavior of myoepitheliomas can vary depending on the location and aggressiveness of the tumor.