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positron emission tomography

[pahs-uh-trahn ee-mish-uhn tom-ahg-ruh-fee]also called a PET scan. An imaging method that creates a picture of the body (or of biochemical events) after the injection of a very low dose of a radioactive substance that the body normally uses, such as a sugar. The scan then looks for areas of radiation in the body that might indicate tumors. (All cells use sugar, but high-grade tumors use more sugar than normal cells or low-grade tumors.) PET scans can help find tumors or see how well a known tumor is responding to treatment. The pictures are not very detailed, but they show the whole body at once. See also grade, imaging tests, nuclear medicine scan, radioisotope.

How is Hodgkin disease staged?

... Some places give you headphones or earplugs to help block this noise
out. Positron emission tomography (PET) scan. ...


Cancer Glossary

... ultrasound. See also computed tomography scan, magnetic resonance
imaging, positron emission tomography, ultrasound. ...


How are soft tissue sarcomas diagnosed?

... Positron emission tomography scan. In this test, radioactive glucose (sugar)
is injected into the patient's vein to look for cancer cells. ...


How is vaginal cancer diagnosed?

... Positron emission tomography. Positron emission tomography (PET) uses
glucose (a form of sugar) that contains a low-level radioactive atom. ...


Nuclear scans

... Positron emission tomography scans: Positron emission tomography (PET)
is a scan that ... gives off tiny atomic particles called positrons, which run ...


Cancer Glossary

... Bone scans and positron emission tomography (PET) scans are types of
nuclear medicine scans. See also bone scan, imaging ...


How are Ewing tumors diagnosed?

... To be sure, other tests such as plain x-rays or MRI scans, or even a bone biopsy
might be needed. Positron emission tomography (PET) scan. ...


How is uterine sarcoma diagnosed?

... Most places provide headphones and music to block this sound. Positron
emission tomography scan. In the positron emission ...


How is vulvar cancer diagnosed?

... However, they are rarely used in patients with early vulvar cancer.
Positron emission tomography (PET). Positron emission ...


Cancer Glossary

... PET scan Search. see positron emission tomography. ... positron emission
tomography Search [pahs-uh-trahn ee-mish-uhn tom-ahg-ruh-fee]. ...