Health Encyclopedia

Sialogram

Definition

A sialogram is an x-ray of the salivary ducts and glands.

The salivary glands are located on each side of the face and send saliva into the mouth.

Alternative Names

Ptyalography; Sialography

How the test is performed

The test is performed in a hospital radiology department or in the health care provider's office by an x-ray technician. You may be given a sedative before the procedure.

You will be asked to lie on your back on the x-ray table. An x-ray is taken before the contrast material is injected to ensure that no stones are present to stop the contrast material from entering the ducts.

A catheter (a small flexible tube) will be inserted through your mouth and into the duct of the salivary gland. A contrast medium in then injected into the duct so that the duct will show up on the x-ray. X-rays will be taken from a number of positions.

You may be given lemon juice by mouth to help stimulate the production of saliva. Pictures are repeated to examine the drainage of the saliva into the mouth.

How to prepare for the test

Inform the health care provider if you are:

Pregnant
Allergic to x-ray contrast material or any iodine substance
Allergic to any drugs

You must sign a consent form. You will need to rinse your mouth with an antiseptic (germ-killing) solution before the procedure.

How the test will feel

There is some discomfort or pressure when the contrast material is injected into the ducts. The contrast material may taste unpleasant.

Why the test is performed

A sialogram may be done when your doctor thinks you might have a disorder of the salivary ducts or glands.

What abnormal results mean

Abnormal results may suggest:

Narrowing of the salivary ducts
Salivary gland infection or inflammation
Salivary duct stones
Salivary duct tumor

What the risks are

There is low radiation exposure. X-rays are monitored and regulated to provide the minimum amount of radiation exposure needed to produce the image. Most experts feel that the risk is low compared with the benefits. Pregnant women and children are more sensitive to the risks of x-rays.

Review Date:1/24/2007
Reviewed By:Stuart Bentley-Hibbert, M.D., Ph.D., Department of Radiology, Weill Cornell Medical Center, New York, NY. Review provided by VeriMed Healthcare Network.

ADAM Quality A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org). URAC's accreditation program is the first of its kind, requiring compliance with 53 standards of quality and accountability, verified by independent audit. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial process. A.D.A.M. is also a founding member of Hi-Ethics (www.hiethics.com) and subscribes to the principles of the Health on the Net Foundation (www.hon.ch).

The Agency for Health Care Administration (Agency) and this website do not claim the information on, or referred to by, this site is error free. This site may include links to websites of other government agencies or private groups. Our Agency and this website do not control such sites and are not responsible for their content. Reference to or links to any other group, product, service, or information does not mean our Agency or this website approves of that group, product, service, or information.

Additionally, while health information provided through this website may be a valuable resource for the public, it is not designed to offer medical advice. Talk with your doctor about medical care questions you may have.