Why It Is Done
A salivary gland scan is done to:
- Find the cause of swelling in the major salivary glands. Swelling may be caused by an infection (abscess), inflammation, or a pocket of fluid (cyst).
- See if a growth in the parotid gland is a benign Warthin's tumor or if it may be cancer.
- Find the cause of dry mouth (xerostomia). Several problems can cause dry mouth, such as a blocked salivary duct, a growth in a salivary gland, or Sjögren's syndrome.