👉 A myoepithelial tumor, also known as a myolipoma, is a type of benign muscle cell tumor that arises from the outermost layer of muscles, specifically in the skeletal muscle. These tumors are typically located within the muscles or tendons and can affect various parts of the body, including the heart, lungs, and bones. Myolipomas can be both benign and malignant. They generally grow slowly over time without any noticeable symptoms, but they may become more prominent when