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Why it's done. A PET scan is an effective way to help identify a variety of conditions, including cancer, heart disease and brain disorders. Your doctor can use this information to help diagnose, monitor or treat your condition.Aug 10, 2021

Why have I been referred for a PET scan?

Your healthcare provider may order a PET scan to check for signs of: Cancer, including breast cancer, lung cancer and thyroid cancer. Coronary artery disease, heart attack or other heart problems. Brain disorders, such as brain tumors, epilepsy, dementia and Alzheimer's disease.

When would a doctor order a PET scan?

A PET scan uses radioactive tracers to measure the chemical reactions in your body in order to diagnose diseases. A doctor will recommend a cardiac PET scan to check the blood flow to your heart muscles. The scan can indicate areas of decreased blood flow, which allows your doctor to accurately decide the next steps.

Does a PET scan mean I have cancer?

Diagnosis. PET scans can help diagnose new or recurrent cancer. Cell growth can be detected with a PET scan, but not all cancer types can be seen. Further tests typically need to be performed to complete the diagnosis.

What conditions can a PET scan detect?

Positron emission tomography (PET) is a medical imaging procedure that provides unique information about how an organ or system in the body is working. PET scans are mainly used to assess cancers, neurological (brain) diseases and cardiovascular (heart-related) disease.

What do the results of a PET scan mean?

Standardized, quantified PET scan results provide your doctor with insight into your condition so that appropriate treatment can be established. In the case of diagnosing or monitoring cancer, for instance, a PET scan helps to provide rapid and accurate information about tumor size, location, and rate of growth.

Do benign tumors light up on PET scan?

Benign tumors and tumor-like conditions are often incidentally detected on FDG PET/CT in serial follow-up studies of cancer patients and should be differentiated from metastasis.

Do benign tumors show up on PET scans?

Benign tumors and tumor-like conditions are often incidentally detected on FDG PET/CT in serial follow-up studies of cancer patients and should be differentiated from metastasis.

Does a PET scan show cancer in lymph nodes?

A PET scan can show whether this tissue is active cancer or not. PET scans are sometimes used to look for cancer in the lymph nodes in the centre of the chest.

What are the signs that you have a cancerous lymph node?

What Are Signs and Symptoms of Cancerous Lymph Nodes?

• Lump(s) under the skin, such as in the neck, under the arm, or in the groin.
• Fever (may come and go over several weeks) without an infection.
• Drenching night sweats.
• Weight loss without trying.
• Itching skin.
• Feeling tired.
• Loss of appetite.