sialogram

Sialogram, ultrasonography, Magnetic resonance imaging (MRI), CT, and aspiration cytology can be helpful for diagnosis.

In order to determine whether the mass has a glandular origin, the radionuclide scan or the sialogram are usually performed.

To confirm the presence of a salivary gland stone you'll have a sialogram, in which a dye is injected directly into the blocked duct and an X-ray of the area is taken.

With obstructive parotid pathology in mind a parotid sialogram was undertaken which showed no evidence of calculus formation, but demonstrated an area of altered ductal architecture stretching around a mass in the mandible.

Typically in such cases, an ultrasound (US) or conventional sialogram would be requested in seeking obstructed or dilated ducts, a ductal calculus or an abscess within the gland.