It involves injecting a radioactive substance into the body, which flows through the lymphatic system.
A special camera detects the substance and captures images of its flow.
This can help guide a biopsy.The test may also be used to find blockages in the lymphatic drainage system.
Verywell / JR Bee
How It Works
Lymphoscintigraphy is a nuclear medicine imaging procedure.
This means it uses radioactive material (called radiotracers), which are typically injected into the body.
Risks
There are few risks of lymphoscintigraphy, and most are mild.
Contraindications
Lymphoscintigraphy isn’t recommended for everyone.
Also, ask if the facility performing your imaging is covered.
Your healthcare provider’s office and the facility should also be able to provide cost information.
Preparation
Lymphoscintigraphy can be performed in either an outpatient or hospital setting.
You shouldn’t have to restrict what you eat or drink before the procedure.
You will either be asked to change into a medical gown or remain in your clothes.
Before the procedure, remove any jewelry or accessories that contain metal.
The Test
Here’s what happens during a lymphoscintigraphy:
How painful is lymphoscintigraphy?
There can be some discomfort when the radiotracer is injected into the breast tissue.
Otherwise, lymphoscintigraphy is painless.
In rare cases, your healthcare provider may recommend rest afterward.
You’ll also be instructed to drink lots of water to help your body flush out the radioactive materials.
Results
A radiologist will look at the images and send a report toyour oncologist.
Your healthcare provider’s office should contact you about the results and whether any follow-up is necessary.
The information from the lymphoscintigraphy will help your healthcare provider determine your treatment plan.
ensure you understand the results and ask questions if anything isn’t clear.
Summary
Lymphoscintigraphy is an imaging procedure that’s often used to help plan a biopsy and treatment.
It’s a common recommendation because it carries minimal risk and can prevent unnecessary surgery.
During this test, a radioactive material is injected into the breast tissue.
A special machine then takes images of the material as it travels to nearby lymph nodes.
Aside from discomfort during the injection, lymphoscintigraphy is painless and has few risks.
Radiological Society of North America.Lymphoscintigraphy.
2015 Jan-Feb;110(1):26-32.
