Salivary Gland Scan
How It Is Done continued...
During a salivary
gland scan, you will sit with the camera placed at your neck. A small amount of
tracer is put in your vein (IV).
camera will scan for radiation released by the tracer. The pictures are taken
every few minutes during the scan. You need to stay very still during the scan
so the pictures are not blurry.
You may be asked to suck on a
lemon after the first pictures are taken. This causes your salivary glands to
release more saliva. Then more pictures are taken.
gland scan takes about 1 hour.
How It Feels
You will not feel pain during the test. You may feel a quick sting or pinch when the IV is put in your arm. The tracer may make you feel warm and flushed.
You may find it hard to lie still during the
There is a slight chance of damage to cells or
tissue from radiation, including the low levels of radiation used for this
test. But the chance of damage from the X-rays is usually very low compared
with the benefits of the test.
Allergic reactions to the tracer are very rare.
In some cases,
soreness or swelling may develop at the IV site. Apply a moist, warm compress
to your arm to relieve these symptoms.
salivary gland scan uses a special camera and a
tracer (radioactive chemical) to take pictures of the
salivary glands .
The results of a salivary gland scan are usually
available within 2 days.
Salivary gland scan
The tracer moves evenly
through the salivary glands and is released normally into the mouth.
The salivary ducts leading
from the salivary glands are not blocked. Saliva is released in response to
sucking on a lemon.
The tracer does not move
evenly through the salivary glands. A pocket of fluid (cyst), a pocket
of infection (abscess), or a tumor or other growth may be
The tracer may not flow
normally from the salivary glands into the mouth. This may be caused by a tumor
pressing on the duct, a stone in the duct, or inflammation of the
The flow of tracer through the
salivary glands is decreased. This may point to a condition, such as
The amount of tracer in the
salivary glands in front of the ear is greatly increased. This may indicate
inflammation or infection of the parotid glands (parotitis).