A sialogram is a test which takes an X-ray picture of the salivary ducts and the related glandular structures. Sialography may be performed when a disorder of the salivary ducts and/or glands is suspected.
Review Date 2/1/2021
Updated by: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.