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Doctor insights on: Can A Xray Miss Lung Cancer

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Dr. Barry Rosen
4,351 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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Can lung cancer be missed on an x-ray?

Can lung cancer be missed on an x-ray?

Easily: Some cancers do not ever show up on x-ray, others look like pneumonia. A chest ct is often needed. ...Read more

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Does a sternum X-ray rule out lung cancer?

Does a sternum X-ray rule out lung cancer?

No: This x-ray is too limited. We have proven a ct of the chest is very helpful in screening for hi risk people though you don't fit age (55 to 74 who smoked > pack of cig/day for >30 ys and who are still smoking or who <15 yrs ago). Smoking volume history, infections and other factors should be considered before scans. With suspicion your primary md may still start with a chest xray before ct. ...Read more

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What does lung cancer " mass" look like on a xray?

What does lung cancer " mass" look like on a xray?

Density: The tumor is dense so it blocks x-rays and shows up as a white circular mass on x-ray. ...Read more

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If one had lung cancer symptoms. Would it show on an X-ray and bloods.?

If one had lung cancer symptoms. Would it show on an X-ray and bloods.?

It might--or not: Advanced lung cancer would show on x-ray. Earlier cancers are better seen with ct scans. If you have been a heavy smoker for 15 or more years, your risk is certainly much higher of a cancer than a non-smoker. Non-smoking related cancers occur, but usually in much older individuals. ...Read more

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If I have chest pain and my X-ray was clear do I need to worry about lung cancer why would a tumor not show?

If I have chest pain and my X-ray was clear do I need to worry about lung cancer why would a tumor not show?

Many causes of Pain: Pain in the chest can be caused by many reasons. Lung cancer can be one of these but it will often produce other symptoms such as cough and shortness of breath. If a chest X-ray is normal then you are not likely to have any tumor in your lungs. Other reasons to exclude is Angina(although it is a disease of the older people) or muscular pain(this is the most likely reason). Such pains go ...Read more

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If you're having chest pain and worried about lung cancer wouldn't the tumor be big enough to show on an X-ray if having pain?

If you're having chest pain and worried about lung cancer wouldn't the tumor be big enough to show on an X-ray if having pain?

NO: The size may influence pain; however, the pleura sac around the lungs has multiple nerve endings. Size is not necessarily the issue. ...Read more

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Which type of specialist can test me for small cell lung cancer (the types of lung malignancy that cannot be seen on xray)?

Which type of specialist can test me for small cell lung cancer (the types of lung malignancy that cannot be seen on xray)?

Pulmonary: If you have some cause or reason, symptoms that would in any way cause concern for a possible lung cancer, than a lung specialist (pulmonary dr.) would be able to diagnose a you accordingly, which may include a history and physical examination, possible testing including labs, x-rays, and possible diagnostic bronchoscopy. ...Read more

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If you had lung cancer that has spread to other parts of your body would it probably be big enough to be seen on X-ray or your blood work be off?

If you had lung cancer that has spread to other parts of your body would it probably be big enough to be seen on X-ray or your blood work be off?

Yes and no: When Cancer starts to spread, it begins as clusters of cells that form tiny colonies in other body parts. These will grow in size over a few months to become visible on X-rays and various diagnostic imaging tests such as CT scan and or PET scan. Blood tests do not show cancer cells, so we rely on the above imaging tests and repeat them periodically(every 2-3 months) to monitor for the tumor growt ...Read more

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General discomfort in left lung, random sharp pain, had X-ray nothing there but that was 1-2 months ago, I'm 17, don't smoke, worried its lung cancer?

General discomfort in left lung, random sharp pain, had X-ray nothing there but that was 1-2 months ago, I'm 17, don't smoke, worried its lung cancer?

Cancer unlikely: It is highly unlikely that you have lung cancer.
For good health — Have a diet rich in fresh vegetables, fruits, whole grains, low fat 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 or alcohol in any form. ...Read more

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Had lung cancer been missed with my dad?

Had lung cancer been missed with my dad?

No way: No way we can answer your question. You provide no information. You should discuss the situation with his treating doctor to address your concerns. ...Read more

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What does lung cancer in a xray look like?

What does lung cancer in a xray look like?

White round circle: Lung cancer tumors look like white round circles on cxr. ...Read more

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What does lung cancer look like on a xray?

May vary: It may look like a small round nodule with smooth or spiculated edges. In some instances, it may have the appearance of ground glass or pneumonia. The clinical situation must be evaluated by your doctor. ...Read more

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Can chest xray detect early lung cancer?

Can chest xray detect early lung cancer?

Sometimes: Sometimes 8-10 mm lung lesions can be detected. Detection depends on location of lesion whether it is central or peripheral. Central lesions near mediastinum are many times difficult to recognize on plain radiograph. Cross sectional imaging such as CT is much more sensitive for small hidden lesions than radiograph. ...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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Need doctor's help! Will lung cancer be missed on a pet?

Need doctor's help! Will lung cancer be missed on a pet?

Maybe: Most lung cancers will be seen on a pet/ct scan, unless they are very small. But if it's the size of a blueberry or larger, it will be seen. Pet scans show bright spots where cells are using a lot of sugar (see picture). This can be from a cancer, an infection, or inflammation. So a negative pet scan means you probably don't have lung cancer. If you do, it's tiny! I hope you feel better! ...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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Would lung cancer be detected on an X-ray when looking at the heart:?

Would lung cancer be detected on an X-ray when looking at the heart:?

Possibly.: A chest xray can detect lung cancer if the tumor is large enough and visible.

A chest ct is a better test at 'looking' inside the lung tissue and detecting lung cancers. ...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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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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I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray?

I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray?

The sensitivity: Of a chest xray for detecting lung cancer ranges from about 40-80% according to various studies. A chest x-ray is not sufficient to rule out lung cancer, sometimes even larger tumors can be masked due to their location next to normal structures. If lung Ca is a realistic concern, Chest CT is the study of choice. ...Read more

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I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray?

I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray?

The sensitivity: Of a chest xray for detecting lung cancer ranges from about 40-80% according to various studies. A chest x-ray is not sufficient to rule out lung cancer, sometimes even larger tumors can be masked due to their location next to normal structures. If lung Ca is a realistic concern, Chest CT is the study of choice. ...Read more

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I've had an X-ray, results show no lung cancer, however I have consistent discomfort in my left lung and often aches, do I have lung cancer? I'm 17.

I've had an X-ray, results show no lung cancer, however I have consistent discomfort in my left lung and often aches, do I have lung cancer? I'm 17.

Lung pain: Lateral chest pain in a young person is much more commonly due to infection like pneumonia or pleuritis, or perhaps even a local chest wall lesion like chondritis or bruising. Lung cancer usually does not present with pain. ...Read more

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I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray? I did have a c

I'm 42 non-smoker have had chest discomfort. If you're having symptoms of lung cancer would the tumor be big enough to be seen on a xray? I did have a c

Possibly: But small tumors can produce symptoms, and large tumors can sometimes be difficult to see on a chest xray, so a chest X-ray is not sufficient to exclude lung cancer. CT of the chest is much more sensitive. ...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


Dr. Anthony Filly
1,477 doctors shared insights

Roentgen Rays (Definition)

Roentgen rays are another term for x-rays, which are a form of electromagnetic radiation (other types include light and microwaves). X-rays are used to provide imaging with plain ...Read more