Salivary gland cancer is a rare form of cancer that grows in the salivary glands inside or near your mouth. Most tumors in the salivary glands are benign, and malignancies represent less than 5% of all head and neck cancers.
Salivary gland cancer is often discovered during a physical exam but can also be found through imaging, such as magnetic resonance imaging (MRI), computerized tomography (CT or CAT) scans or positron emission tomography (PET) scans.