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Positron Emission Tomography (PET)

Positron Emission Tomography (PET)

A PET scan is an imaging technique that can show how body tissues are working, as well as what they look like. It can help to diagnose and assess the severity of a cancer. In this scan, a radioactive tracer may be injected, swallowed or inhaled, depending on which organ or tissue is being studied by the PET scan.

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Primary Site

The place in the body where a tumor starts.

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Primary Tumor

The original, or first, tumor in the body. Cancer cells can spread from a primary tumor to other parts of the body and form secondary tumors.

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Probiotic Supplements

Probiotic supplements are live bacteria and yeasts that are good or helpful for your gastrointestinal (digestive) system.

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Prognosis

A medical prediction about the probable cause and outcome of a disease.

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Proliferative Index

A measure of the number of cells in a tumor that are dividing (proliferating).

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Prophylaxis

Preventative treatment or action.

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Proteins

The basic building blocks of tissue and other structures in the body. An enzyme is a kind of protein that causes chemical changes in your body.

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Radiation Therapy

A form of therapy used to kill cancer cells by damaging their DNA. Radiation can damage normal cells too, so treatment should be carefully planned to decrease side effects.

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Radio Embolization

Uses radiation to treat NETs that have developed in the liver. It is similar to hepatic chemoembolization but instead of chemotherapy it uses radiation to block the blood supply to NET cells in the liver. This process stops the tumor from releasing its hormones into the blood system. Also known as hepatic artery embolization (HAE).

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Radiofrequency Ablation (RFA)

A process which uses heat made by radio waves to kill cancer cells. RFA is given using a probe (electrode) that is injected through the skin into the tumor. The electrical current from the probe heats the cancer cells to high temperatures, which destroys them.

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Radiologist

A medical doctor who specialises in diagnosing and treating disease and injury through the use of medical imaging techniques, such as X-rays, computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), fusion imaging, and ultrasound.

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Radiology

The use of radiation to treat or diagnose disease.

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Radionuclide

A radionuclide (sometimes called a radioisotope or isotope) is a chemical that emits a type of radioactivity called gamma rays.

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Radiotherapy

The use of high-energy radiation to destroy cancer cells and shrink tumors. The radiation may come from a machine outside the body or from radioactive material that is placed in the body near cancer cells.

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Respiratory

Pertaining to breathing.

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Scintigraphy

An imaging test that produces two-dimensional images of the distribution of radioactivity in tissues after the internal administration of a radiopharmaceutical imaging agent. Radioactive imaging tests include octreotide scan, bone scintigraphy and MIBG scan.

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Secondary Cancer

Also known as a secondary tumor or metastasis. This is a tumor that forms from cancer cells that spread from a primary tumor to other parts of the body. The secondary tumor is the same type of cancer as the primary tumor.

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Secondary Tumor

Also known as a metastasis. This is a tumor that forms from cancer cells that spread from a primary tumour to other parts of the body. The secondary tumor is the same type of cancer as the primary tumor.

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Secrete

To release a substance produced by a tissue that may be retained in the body or released from the body.

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