A Sialogram is a fluoroscopy test of the salivary ducts. It shows salivary duct stones or narrowing. Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year).
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
Salivary duct stones or narrowing.
Recurrent salivary gland swelling.
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
30 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Fluoroscopy
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does a sialography show?
Salivary duct stones or narrowing.
Why is a sialography done?
Recurrent salivary gland swelling.
How do I prepare for a sialography?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Does a sialography use radiation?
Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
How long does a sialography take?
30 minutes
Why is Sialogram done?
Recurrent salivary gland swelling.
How do I prepare for Sialogram?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Is Sialogram safe in pregnancy?
Typical effective dose 0.1 to 0.5 mSv, similar to about 2 weeks to 2 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.