Parotid Swelling by Pleomorphic Adenoma
Pleomorphic adenoma is a benign (non-cancer) type of tumor in salivary glands or parotid glands. It still has a malignant potential. The tumor is usually on one side and causes parotid swelling. It is a firm, movable, painless tumor. When you notice a parotid swelling slowly growing over a couple weeks, please go to see your doctor for diagnosis and treatment.