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Doctor insights on: Chest X Ray Or Ct Scan For Lung Cancer

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I have been having blood in spit for 3 months. Yeaterday, I got chest ct scan and x-ray. Both were normal. Any risk of lung cancer?

I have been having blood in spit for 3 months. Yeaterday, I got chest ct scan and x-ray. Both were normal. Any risk of lung cancer?

Remote, but: With negative scans, very remoted. But there is a reason for the blood. Insist on further workup, including GI and ENT docs. ...Read more

Dr. Barry Rosen
4,432 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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Clear CT scan of chest. Worried about lung cancer. Two x rays and one CT clear. But the CT was without contrast & shoulder pain persists. Contrast?

Clear CT scan of chest.  Worried about lung cancer.  Two x rays and one CT clear.  But the CT was without contrast & shoulder pain persists. Contrast?

NO!: Lung cancer has been eliminated as a realistic diagnosis. Move on, be glad. There are rather more mundane causes for shoulder pain. See an orthopedic surgeon and find out what's going on with that shoulder. ...Read more

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I just had an angio pulmonary cat scan with contrast to rule out a pulmonary embolism. Can that detect lung cancer? Chest xray normal. 42 years old.

I just had an angio pulmonary cat scan with contrast to rule out a pulmonary embolism. Can that detect lung cancer? Chest xray normal. 42 years old.

Yes,: that type of CT can detect lung cancer. Tiny nodules 2mm or less can potentially be detected. There are benign causes for nodules as well, so although CT is good at finding nodules, and possibly assigning a reasonable probability of malignancy based on certain imaging features, CT cannot make a definitive diagnosis of cancer. ...Read more

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I am a lung cancer servivor of 15 years I have had bronchitus since mid july I have had a chest xray and a cat scan and my lungs are fine my cancer treatment was surgery to remove top lobe of left lung and 6 and a half weeks of radiiation?

I am a lung cancer servivor of 15 years I have had bronchitus since mid july I have had a chest xray and a cat scan and my lungs are fine my cancer treatment was surgery to remove top lobe of left lung and 6 and a half weeks of radiiation?

COPD?: Sounds like your cancer is cured, congratulations, you are one of few! you probably smoked and this lingering bronchitis may be uncontrolled copd. Check with your doctor for bronchodilators +/- steroids. Radiation pneumonitis would be very unusual after all this time. ...Read more

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My chest X-ray showed something wrong but the CT Scan was clear. What could it be? They thought it might be a collapsed lung or cancer. I have to wait a week to see the doctor. I am scared.

My chest X-ray showed something wrong but the CT Scan was clear. What could it be? They thought it might be a collapsed lung or cancer. I have to wait a week to see the doctor. I am scared.

May be nothing: If the ct was done after the xray, then there is a good chance that there was nothing there. Chest xrays occasionally suggest abnormalities that are not found on ct scans; however, the ct scan is much better at demonstrating pathology. If the ct was normal, i wouldn't worry very much. But, make sure you follow up with your doctor. ...Read more

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Should I worry about cancer if I had a single head ct scan 8 years ago, kidney Xray 5 years ago,spine Xray and mri 1year ago chest X-ray 1 month ago ?

Should I worry about cancer if I had a single head ct scan 8 years ago, kidney Xray 5 years ago,spine Xray and mri 1year ago chest X-ray 1 month ago 
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No.: These diagnostic procedures will not measurably increase your risk of cancer over your background or natural risk. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex. ...Read more

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Had an adnominal/pelvis ct scan, a chest X-ray, and a lumbar spine X-ray all within a year. Does this significantly increase my cancer risk??

No: The radiation exposure form these studies is not likely to measurably increase your risk of cancer. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. ...Read more

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If lung cancer cannot be detected on chest X-ray what's the point in having one?

If lung cancer cannot be detected on chest X-ray what's the point in having one?

Lung cancer CAN: Be seen on chest x-ray, depending on the size and location of the lesion. Ct is the gold standard, but much more expensive and has a higher radiation dose. ...Read more

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Can anxiety cause shortness of breath that is not hyperventilling? After clear chest X-ray, dr doesn't want to do more testing? Scared its lung cancer

Can anxiety cause shortness of breath that is not hyperventilling? After clear chest X-ray, dr doesn't want to do more testing? Scared its lung cancer

Anxiety: Anxiety frequently causes shortness of breath. Lung cancer would only cause shortness of breath if it were advanced and that would show up on chest xray. ...Read more

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Can you see lung cancer in a chest x-ray?

Can you see lung cancer in a chest x-ray?

Maybe: It depends on the size and location of the lung cancer. Small cancers (less than 1 cm) may be difficult to identify with chest radiographs. Ct scan of the chest is much more sensitive in evaluating for lung cancer and associated disease. ...Read more

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Would a clear chest X-ray mean there is no lung cancer?

Would a clear chest X-ray mean there is no lung cancer?

Not necessarily: Chest xrays are not regarded as good lung cancer screening tools. Ct-scan, while imperfect, is currently the best demonstrated screening tool for lung cancer. A proper protocol chest ct will use about the same radiation as a mammogram. http://goo.gl/b69an. ...Read more

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How accurate is a chest X-ray for diagnosing lung cancer?

How accurate is a chest X-ray for diagnosing lung cancer?

Not very: A chest ct is much more accurate as it provides much better detail. ...Read more

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Can a chest X-ray or echo detect lung cancer?

Can a chest X-ray or echo detect lung cancer?

Not easily: Cxr has been compared head to head with chest ct scan for screening in high risk patients for lung cancer. That study, national lung screening trial, found that in high risk patients, screening chest ct scan was more effective, and was found to save lives. Larger cancers might be seen on a cxr, but smaller cancers may be missed. ...Read more

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Chest X-ray results say curvilinear density in the R pericardial region. Could represent fat pad or small R middle lobe infiltrate. Lung cancer?

Chest X-ray results say curvilinear density in the R pericardial region. Could represent fat pad or small R middle lobe infiltrate. Lung cancer?

It is unlikely: that it is cancer, but it still may require further evaluation with a CT scan to be sure. If you had any previous chest xrays elsewhere, have them sent to the radiologist to compare with the new one. That could solve the issue without any additional tests. Talk to your doctor about the results. ...Read more

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What can recurring blood in spit indicate? Chest X ray normal. 20 year old male, never smoked, no family history of lung cancer

What can recurring blood in spit indicate? Chest X ray normal. 20 year old male, never smoked, no family history of lung cancer

Oral blood: Anytime there is recurrent blood in oral secretions, a thorough exam is in order. While many doctors immediately consider chest or respiratory causes, there are oral gum and tooth conditions, such as periodontal disease or gingivitis which can be the source of blood. In addition, nasal or sinus disease may result in oral blood. See your dentist, and go from there. ...Read more

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Chest X-ray clear, blood in phlegm is now gone but have upper back pain. If it was lung cancer would it have shown on x ray? Having anxiety!

Chest X-ray clear, blood in phlegm is now gone but have upper back pain.  If it was lung cancer would it have shown on x ray? Having anxiety!

Not always: A chest x-ray can miss lung cancers, especially if they are early/small, when they can be best treated. Although it is not likely you have lung cancer given your age, please see your health care provider and get further evaluation. A chest ct would be a better test for lung cancer depending on your specific situation, but we want to limit radiation exposure, so benefit needs to outweigh risk. ...Read more

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Other than chest x-ray, any other ways to look for lung cancer? Blood tests, etc.? Thank you.

Low dose CT: The national lung screening trial (new england journal of medicine) showed that screening chest ct in high risk patients (heavy smokers and older patients) reduced deaths from lung cancer by 20% compared to patients screened with plain x-ray alone. There will soon be specific guidelines on exactly who should under go routine chest ct screening. ...Read more

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Dr. Jane Van Dis
43 doctors shared insights

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


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