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Doctor insights on: Do Pet Scans Show Lung Cancer

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Do pet scans show lung cancer?

Do pet scans show lung cancer?

Sort of...: The pet scan non-specifically show very metabolically active (consuming lots of energy), and lung cancer and its metastasis fit that category. It is not specific. Benign conditions like sarcoid can also make pet studies glow very brightly as well. Slow growing lung cancer, broncheoalveolar may not be pt avid. ...Read more

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Dr. Barry Rosen
4,323 Doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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How often do you need to use PET scan or bronchoscope to locate lung cancer because it does not show on CT scan but symptoms tell you to keep looking?

How often do you need to use PET scan or bronchoscope to locate lung cancer because it does not show on CT scan but symptoms tell you to keep looking?

Clinical judgement: This pathologist is underwhelmed with the health or public benefits of intensive screening for tiny lung cancers. I'd hope that if the person is symptomatic, some other investigations are undertaken and the actual cause gets found. ...Read more

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Life expectancy for lung cancer gone to brain. Pet scan shows no other cancer now, only 1 tumor on brain. Surgery and whole brsin radiation will be?

Life expectancy for lung cancer gone to brain. Pet scan shows no other cancer now, only 1 tumor on brain. Surgery and whole brsin radiation will be?

"oligometastatic": Patients with a single brain tumor as the only site of metastatic disease are called "oligometastatic." the chance of cure, though small, is real. Every cancer specialist has a few such patients. I would strongly recommend aggressive treatment, including either radiosurgery (cyberknife, gammaknife, etc.) to the brain or surgical resection, and again stereotactic or chemoradiation to the lung. ...Read more

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Radiology Does a PET scan have a much better chance of picking up a central lung cancer if it was missed at LDCT? Thank You

Radiology Does a PET scan have a much better chance of picking up a central lung cancer if it was missed at LDCT? Thank You

LDCT is a: Noncontrast lung nodule screening study, and it is possible that small central lesions may not be visualized due to proximity to normal blood vessels or other structures. PET is extremely sensitive, but if a diagnostic contrast enhanced CT scan with thinner collimation and higher resolution is negative, probably unnecessary. ...Read more

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Can pet scan always diagnose /confirm presence of lung cancer or can only give indication and later biopsy is vital to confirm cancer if a nodule seen?

Can pet scan always diagnose /confirm presence of lung cancer or can only give indication and later biopsy is vital to confirm cancer if a nodule seen?

Bx definitive: A positron emission tomography (pet) scan is an imaging test that uses a radioactive substance called a tracer to look for disease in the body. It is often used to determine the treatment of cancer, if it is spreading, or improving, etc. Used in combination with tests such as ct or mri, it can provide a very high index of suspicion for cancer, but a bx is always definitive and used for tx. ...Read more

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What test is best to rule out lung cancer or lukemia? MRI with contrast or pet scan? Been having heavyness weak pulse for 6 months

What test is best to rule out lung cancer or lukemia? MRI with contrast or pet scan? Been having heavyness weak pulse for 6 months

Tests: The best test to screen for lung cancer, in my opinion, is a chest ct scan as a conventional chest xray can miss it. A simple blood test, cbc and differential, is adequate to screen for leukemia. These are screening tests but a tissue diagnosis is required in most cases for a definitive diagnosis. Your pulse description is nonspecific. An MD can check your bp and pulse to look for abnormalities ...Read more

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5cm Pleural mass in right lung. Pet scan show not cancer...is surgery still necessary and what are the risks. Thanks?

5cm Pleural mass in right lung. Pet scan show not cancer...is surgery still necessary and what are the risks. Thanks?

Lung mass: Something is missing! There must have been symptoms that led to a pet scan. Unless a biopsy was performed how could your doctor simply say that there was no cancer? I hope there was indeed no cancer but the symptoms that led to the pet scan should be a cause for biopsy. Do the doctors have any idea what the pleural mass might be? Please keep me informed. ...Read more

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Would a body scan show lung cancer?

May be: A question of the form can A show B is almost always answered maybe, because you cannot completely exclude the possibility that it may or may not demonstrate the finding in question. Also a mass has to have at least 1, 000, 000, 000 cells before it is visible on a contemporary scan. ...Read more

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Do CT scans show if a person has lung cancer?

Do CT scans show if a person has lung cancer?

Yes: If CT revealed mass in lung for defenite diagnosis need biopsy, or if possible resection of tumor. ...Read more

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My pet scan was highly suspicious for malignancy in rt lung. Now onto Bronchoscope so didn't pet confirm cancer? This cancer isn't curable!

My pet scan was highly suspicious for malignancy in rt lung. Now onto Bronchoscope so didn't pet confirm cancer? This cancer isn't curable!

PET scan helps but n: A PET scan can show an abnormality where body cells are overactive. This happens commonly with Cancer and with any Infection or inflammation. So a biopsy is required to make the distinction between Inflammation and Cancer. A bronchoscopy may show the tumor or it may be used to get a biopsy by getting near to the tumor ...Read more

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3cm nodule on rt lung hilerregion? Pet scan this am, can scan cause cancer & what are side effects? I'm scared to have cancer &nodule in lowerlft lung!

3cm nodule on rt lung hilerregion? Pet scan this am, can scan cause cancer & what are side effects? I'm scared to have cancer &nodule in lowerlft lung!

PET scan is the answ: PET scan is a safe test. It is the best test to find out if the nodule in your lung is benign (no PET uptake) or Cancerous (increased PET update also called Hot scan. Your doctor will guide you according to the results of your PET scan. Let us know the result when available. ...Read more

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I have a 2 CM nodule and smaller nodules in my lungs. Will be getting a pet scan. How quickly will it spread if it's cancer?

I have a 2 CM nodule and smaller nodules in my lungs. Will be getting a pet scan. How quickly will it spread if it's cancer?

Depends: Cancers spread at different rates. Small cell cancer spreads quickly. Treatment also affects the rate of spread. If the pet scan is positive next step is biopsy. ...Read more

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What to do if I have a 2cm nodule and smaller nodules in my lungs, going in tomorrow for a pet scan. If this is cancer, how quickly will it spread?

What to do if I have a 2cm nodule and smaller nodules in my lungs, going in tomorrow for a pet scan. If this is cancer, how quickly will it spread?

Need evaluation: Proceed with PET scan. ultimately you would need to have a biopsy of the lung mass to establish a diagnosis. If you smoke, please quit. God only knows how quickly it will spread. Having said that- it will depend of the biology of the cancer- some cancers are indolent/slowly growing, and others are aggressive. PET scan will show if there is any other suspicious area- lymph nodes or organs. ...Read more

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Does hypermetabolism in the upper right mass of the lung mean cancer? A PET scan was performed on the person

Does hypermetabolism in the upper right mass of the lung mean cancer? A PET scan was performed on the person

Doesn't sound good: Hi. Going solely on what you've told us, it doesn't sound good. The doctor (s) involved in the patient's care WILL explain the result. Good luck to the patient! ...Read more

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Mass in my lung 5cm. Biopsy sample was insufficient. Who can help me to do pet scan...till now they not sure cancer or not. And what risks of surgery?

Mass in my lung 5cm. Biopsy sample was insufficient. Who can help me to do pet scan...till now they not sure cancer or not. And what risks of surgery?

Any good doctor can: If you have a growth in the lung, you need to be under the care of an internist or an oncologist. What is the specialty of your doctor whom you are seeing now (who ordered your biopsy?). You need to tell us details of your history. Any medical or surgical doctor can order the relevant tests including CT scan or PET scan, but you must go to a specialist if possible. ...Read more

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Had a pet scan for breast cancer, showed fluid on the lung?

Had a pet scan for breast cancer, showed fluid on the lung?

Yes it can show: Pet scan also will have superimposed very high resolution ct scan images will show, now need additional test to find out the nature of fluid. ...Read more

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Is it possible that CT scan shows no pleural masses while I have lung cancer and massive effusion?

Is it possible that CT scan shows no pleural masses while I have lung cancer and massive effusion?

Unusual but yes.: CT scans have limited resolution. They do NOT see everything. Usually large pleural effusions come from significant disease, but not always cancer. The only way to tell is to have the pleural effusion drained & sent for cytology & other testing (culture). The lab techs can spin down the fluid, isolate cells or bacteria that may be causing it. Talk to a pulmonologist or your primary doc. Good luck! ...Read more

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Dr. Guido Davidzon
291 Doctors shared insights

Pet Scan (Definition)

Pet scans most often use a radioactive form of glucose, the energy source for most of the cells in our bodies. The pet scanner can detect and measure how much of the radioactive glucose analog, f-18 fdg, is in a particular organ or region. The areas using more glucose are hyper metabolic and generally more worrisome. Our brains and sometimes hearts prefer glucose as food, making ...Read more


Lung (Definition)

Deoxygenated blood enters the lungs from the right side of the heart and travels to the lungs. When you inspire, oxygen flows into the lungs, transverses the capilliares and attaches to hemoglobin down a gradient. At the same time, co2 diffuses into the capilaries and is expelled with exhalation. Oxygen rich blood then flows to the left side of the heart and into the ...Read more