What Are the Risks and Benefits of Parotid Tumor Surgery? Most parotid tumors are benign, with about 85% being non-cancerous. The most common type is a pleomorphic adenoma, also called a benign mixed tumor. These tumors are well-defined, slow-growing, and usually removable with surgery. https://alphasurg1.blogspot.com/2026/04/what-are-risks-and-benefits-of-parotid.html