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Doctor insights on: Ct Scan Lung Nodule

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What bloodwork would be used in diagnosing pancoast tumor? I am waiting to have CT scan due to apex lung nodule.

Usually none: A pancoast tumor (name of radiologist who described it), is a tumor involving a specific site in the lung, but it does not give the specific type. Usually they are adenocarcinoma or squamous cell carcinoma, but you need a biopsy to prove this. Do you smoke? You are young for a lung cancer, even though you have thallasemia. Do not worry until a biopsy and ct have been performed. ...Read more

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Dr. Gregory Moneta
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Computed Tomography (Definition)

Ct uses xrays taken an 360 degrees combined with a computer to see"inside" the body. The table moves as the xray tube and detectors spin around the patient 10 times a second or more! the image shows excellent soft tissue detail, enhanced with injection of intravenous contrast or oral contrast. This way the body is shown in slices, in any plane, usually axially, but ...Read more


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Ct scan showed very small lung nodule. I've had 3 chest x-rays prior and nothing showed on them. What happens now? How to determine if it's cancer?

Ct scan showed very small lung nodule. I've had 3 chest x-rays prior and nothing showed on them. What happens now? How to determine if it's cancer?

Depends: If the nodule is very small, it would not be seen in a plain x-ray so the fact you had 3 prior negative ones does not mean much. You may have had it undetected for years. Depending on how big it is and your clinical situation, your doc may opt to follow up with another ct scan in 6-12 months, do a pet scan, or proceed with a biopsy. Good luck and if you are a smoker, quit today. ...Read more

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After waiting 3 months for 2nd CT scan after multiple lung nodules are found in smoker, what is the likelihood of it being cancer? Largest being 7.5m

After waiting 3 months for 2nd CT scan after multiple lung nodules are found in smoker, what is the likelihood of it being cancer?  Largest being 7.5m

Possible: The 2nd CT should show if any of the lung nodules is increasing in size which would indicate possible cancer..otherwise multiple nodules thar are stable may suggest granulomatous inflammation (rounded collections of inflammatory cells) ...Read more

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My mother had a recent CT scan, it showed 3 lung nodules, 4mm 6mm & 9mm she is 77yrs has had a cva 2yrs ago, history of lymphoma, & ex smoker. Cancer?

My mother had a recent CT scan, it showed 3 lung nodules, 4mm 6mm & 9mm she is 77yrs has had a cva 2yrs ago, history of lymphoma, & ex smoker. Cancer?

Probably not cancer: But best to talk with your doctor about the possibility of a ct guided biopsy by an interventional radiologist. A thin needle is passed into the nodule most easily reached and a sample is obtained for pathology. A biopsy is the only way to know for sure. ...Read more

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On feb 2012 after CT lung scan a 2mm lung nodule was found. Do i need to retest? Can a 2mm lung nodule disappear and if yes how long does it takes?

Need a followup: 2mm is really below any diagnostic resolution of ct. In your age, it most likely represents a bening finding, rather than a lung cancer. You should have had a follow up scan 3-6 months to assure either resolution of the nodule or to determine if it got larger. These can easily disappear if inflammatory. ...Read more

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Had 6 negative CT scans for a benign lung nodule in my early 40s. Is my risk of cancer increased,by how much and how many years down the road?

Had 6 negative CT scans for a benign lung nodule in my early 40s. Is my risk of cancer increased,by how much and how many years down the road?

Cannot predicy: If after all those CT scans there has benn no change in the finding, then the likelihood it is nothing to worry about. Your risk of cancer is not increased by this nodule or the CT. There are never any guarantees that you won't get cancer. A healthy life style without smoking and the like will certainly be in your favor. Good luck ...Read more

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I was recently told that I have a small 5 mm lung nodule. Discovered by CT scan. I am not a smoker. Never have been. Should i be worried?

I was recently told that I have a small 5 mm lung nodule. Discovered by CT scan. I am not a smoker. Never have been. Should i be worried?

Fleischner criteria: Nodules are common, and tend to scare people. The following link has criteria often followed by radiology groups regarding your findings. Be cautious, but not worried. Best wishes. http://www.snm.org/docs/pet_coe/off_the_wall/fleis.pdf. ...Read more

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Is a lung nodule which is 7cm in size not very big though described as benign by 1st CT scan with a 2nd CT in 6 mnths should I be concerned about 7cm?

Is a lung nodule which is 7cm in size not very big though described as benign by 1st CT  scan with a 2nd CT in 6 mnths should I be concerned about 7cm?

Need to check: the report again. 7 cm or 7mm or 0.7 cm? If lesion really 7 cm , it needs work up now. If 7mm ( same as 0.7cm ) then 6 month follow up scan ok. ...Read more

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Had a CT scan it showed a 7cm lung nodule it may be benign I'm going to have another CT scan in 6 months to see if it has grown I'm a little concerned?

Had a CT scan it showed a 7cm lung nodule it may be benign I'm going to have another CT scan in 6 months to see if it has grown I'm a little concerned?

Lung Nodules: are very common and fortunately most of the time are benign. Many people actually have these and are unaware. There are certain characteristics of nodules such as size and appearance that may sometimes be more worrisome. Also, a history of cigarette smoking may be a cause for concern. 6 months is a standard screening period for lung nodules. ...Read more

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My dad has a lung nodule that has been stable for 5 years. This year the CT scan showed it grew 1mm. Can CT measurements be wrong?

Yes, it is not exact: Growing lung nodules can be cancer. But the growth has to be real which means increase of more than 2-3 mm before we can get concerned. The cross sections on ct are rarely at the same level so there is one or 2 mm variation between serially done ct scans. ...Read more

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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


Dr. Michael Korona
1,789 doctors shared insights

Ct Scan (Definition)

Ct scan uses data from a beam of xrays and reconstructs a cross sectional image of your body. It is a high dose of xrays and used only when the benefits outweigh the risk. Cancer risk is 1 in 500 in children. Also using iodinated contrast might cause transient renal failure in about 5% of patients. (contrast induced nepropathy) most do not explain this to the patient as ...Read more