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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. ...

http://www.cancer.org/cancer/hodgkindisease/detailedguide/hodgkin-disease-staging

Cancer Glossary

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

http://www.cancer.org/cancer/cancerglossary/index.aspx?letter=i

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. ...

http://www.cancer.org/cancer/sarcoma-adultsofttissuecancer/detailedguide/sarcoma-adult-soft-tissue-cancer-diagnosis

Nuclear scans

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

http://www.cancer.org/treatment/understandingyourdiagnosis/examsandtestdescriptions/imagingradiologytests/imaging-radiology-tests-nuc-scan

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. ...

http://www.cancer.org/cancer/vaginalcancer/detailedguide/vaginal-cancer-diagnosis

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. ...

http://www.cancer.org/cancer/ewingfamilyoftumors/detailedguide/ewing-family-of-tumors-diagnosis

How is vulvar cancer diagnosed?

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

http://www.cancer.org/cancer/vulvarcancer/detailedguide/vulvar-cancer-diagnosis

How is osteosarcoma diagnosed? | American Cancer Society

... Positron emission tomography (PET) scan. For a PET scan, a form of
radioactive sugar (known as FDG) is injected into the blood. ...

http://www.cancer.org/cancer/osteosarcoma/detailedguide/osteosarcoma-diagnosis

Cancer Glossary

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

http://www.cancer.org/cancer/cancerglossary/index.aspx?letter=n

How is uterine sarcoma diagnosed?

... Positron emission tomography scan. In the positron emission tomography
(PET) scan, radioactive glucose (sugar) is injected into the patient's vein. ...

http://www.cancer.org/cancer/uterinesarcoma/detailedguide/uterine-sarcoma-diagnosis