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Doctor insights on: Adolescent Ct Cancer Risk

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Would 6 CT scans early in your 40s increase your cancer risk later in life? If so by how much and how many years later?

Would 6 CT scans early in your 40s increase your cancer risk later in life? If so by how much and how many years later?

Yes: It depends on the type of ct scan. For standard abd/pelvis Ct scan, 6 scans would result in a total effective dose of 84 mSv, resulting in a theoretical increased lifetime cancer risk of 0.559% or 1/179 over baseline. You can calculate this, and more, at xrayrisk. Com. Latency for radiation induced cancer is probably at least 15-20 years. ...Read more

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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When I was you younger (22-25 am 32 now) I had a large number of CT scans, VQ scans, etc., probably 20 or 30. .. How high is my cancer risk now? : (

When I was you younger (22-25 am 32 now) I had a large number of CT scans, VQ scans, etc., probably 20 or 30. .. How high is my cancer risk now? : (

Little higher: Slightly higher than the normal population. Follow up with your doctor routinely to prevent things before they happen. ...Read more

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Confusing information regarding CT scans. How dangerous are they? I probably have had 15-20 CT head lifetime, not sure. Cancer risk high????

Confusing information regarding CT scans. How dangerous are they? I probably have had 15-20 CT head lifetime, not sure. Cancer risk high????

Fear mongering: Please forgive my frankness. Getting a CT scan gives you about the same amount of radiation as you'd get from living for three months in Denver rather than Topeka. The increased cancer risk in Denver, if any, isn't measurable. Doctor-bashing is big-money and there's no requirement not to mislead. If there's any suspicion you needed a CT scan, we have to get you one. Don't worry -- not productive. ...Read more

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How much does my cancer risk increase after a CT Scan of the head as a teenager?

How much does my cancer risk increase after a CT Scan of the head as a teenager?

Almost no risk: Please see: http://www. Scientificamerican. Com/article/how-much-ct-scans-increase-risk-cancer/
also:
1) CT head exposure is mostly confined to the head, not the whole body.
2) There may be cellular repair at doses as low as CT, limiting cancer rates. (We don't know how much).
3) Whatever the theoretical risk, there must be a good reason to do the CT in the first place. ...Read more

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29 year old female 2 head CT scans without contrast within 2 months of one another. What is my cancer risk? I have read "small" or "negligible"

29 year old female 2 head CT scans without contrast within 2 months of one another. What is my cancer risk? I have read "small" or "negligible"

Negligible: Two CT scans will not raise your risk to a measurable level, above your background 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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Please tell me if a single chest CT scan can lead to cancer? I am worried about cancer risk.

CT scan risk: There are items that can increase the lifetime risk of cancer. A single ct chest scan will increase that risk more than an xray. But if you need the ct chest scan, than the benefits can outweigh the risk. Smoking is a much worse avoidable risk factor for cancer. Also, to decrease cancer risk, eat a healthy diet including fruits and vegetables and reduce red meat. ...Read more

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I had one CT angio full body and one full body CT scan last yr in a10 day period. The total exposure was 52 msv. What is my cancer risk? I am 27.

I had one CT angio full body and one full body CT scan last yr in a10 day period. The total exposure was 52 msv. What is my cancer risk? I am 27.

Remote: Excessive radiation carries some risk of causing Cancer but many years later (>10 years). Only doses in excess of 100 msv carry significant risk. In your case, my guess is that, the odds are less than one in thousand individuals. ...Read more

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30 y/o healthy male. Over the past ten years I have had several CT scans: 3 of my head as well as a CT myelogram. Is my cancer risk much higher?

30 y/o healthy male. Over the past ten years I have had several CT scans: 3 of my head as well as a CT myelogram. Is my cancer risk much higher?

No: A person's cancer risk is not much higher before or after several CT scans. An individual person's tiny increase in cancer risk is not measurable. Of course, a person should only get x-ray studies if medically needed... to keep one's lifetime radiation exposure lower. ...Read more

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I had headaches when I was 15 I had a CT of head was fine then a few months later I fell and hit my head got another CT now scared of cancer risk?

I had headaches when I was 15 I had a CT of head was fine then a few months later I fell and hit my head got another CT now scared of cancer risk?

Small increase.: Your absolute risk went up a little but not a lot. The lifetime risk of CA is about 1/1500 for each head scan. This is about 0.35% increase over baseline risk (which is low but never 0%) ...Read more

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I have been reading about danger of CT scan and the cancer risk later in life. I had one chest ct. Is it possible to get cancer later from that CT?

I have been reading about danger of CT scan and the cancer risk later in life. I had one chest ct. Is it possible to get cancer later from that CT?

Not likely: We are all exposed to radiation all the time in low amounts. Ct scans do expose a person to small amount of radiation, but these tests provide a lot of useful information. It is not likely that you will get cancer, that you were not going to get otherwise, by having one ct. ...Read more

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I had one chest CT with 4.8msv dose, is it too much radiation? Will it cause cancer years later? I am worried about cancer risk. Please help!

I had one chest CT with 4.8msv dose, is it too much radiation? Will it cause cancer years later? I am worried about cancer risk. Please help!

Stop worrying buddy: Pilots get an extra 3 mSV every year and nobody's shown an increased cancer risk. Be thankful for good health and the technology that will detect serious disease while it's treatable. ...Read more

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I am worried about my cancer risk as I had one CT scan to rule out lymphoma. I am 30yr and healthy. I am not able to sleep because of fear from ct.

I am worried about my cancer risk as I had one CT scan to rule out lymphoma. I am 30yr and healthy. I am not able to sleep because of fear from ct.

VERY low risk: If I understand your question correctly, you are concerned about developing cancer because you had a ct scan. You should not worry, having one ct scan has essentially no effect on your future risk of developing cancer. ...Read more

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Had 2 head ct scans in 2 years. Does this increase my future brain cancer risk even more since they were done so close together?

Had 2 head ct scans in 2 years. Does this increase my future brain cancer risk even more since they were done so close together?

No, I don't think: It increase your brain cancer risk at all. Althogh there is more radiation in a CT than a conventional xray, the risk of cancer inducement is very, very small. I don't think you have anything to worry about. ...Read more

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What can be done to reduce cancer risk after CT scan (chest). I m worried about thyroid cancer as it is related to chest CT scan.

Don't worry: Hello - the radiation exposure from one ct scan is low. You do not need to worry about thyroid cancer because of a ct. We are exposed to radiation throughout our normal daily routines and when we fly. If you'd like you can limit other exposures. Request pat-downs at security at airports instead of the scanner for example. I don't think you need to do anything, however. ...Read more

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What are the chances of getting lung cancer from one chest CT scan? I had one chest CT scan month ago and I m worried about cancer risk.

What are the chances of getting lung cancer from one chest CT scan? I had one chest CT scan month ago and I m worried about cancer risk.

None!: You cannot get cancer from one routine ct scan. It takes more than dozens of ct scans over a life time, even then it is rare to have this problem. Otherwise we will be foolish doing ct scans on people in order to help them! ...Read more

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I had 2 head CT scans in 3 months and 4 x rays. One for suspected stroke (negative) and one for concussion. I am 28 year old female? Scan cancer risk?

I had 2 head CT scans in 3 months and 4 x rays. One for suspected stroke (negative) and one for concussion. I am 28 year old female? Scan cancer risk?

Exposure: You should discuss radiation exposure with any doctor ordering CT, X-ray, nuclear medicine or other radiation exposure tests. There is a cumulative effect and these tests should be done only when the need for the information justifies the exposure. ...Read more

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a 3cm nodule on the right thyroid. Left side removed already The ct scan indicated 1.5cm rt upper lung. Related? Cancer risk?

a 3cm nodule on the right thyroid. Left side removed already The ct scan indicated 1.5cm rt upper lung. Related? Cancer risk?

More evaluation: You will need more evaluation. You need to give a better history. What kind of thyroid lesion did you have before? Why was only this lobe removed? You need to follow closely with your doctor and further testing ...Read more

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I had 2 reg. Chest xrays a month before a head CT I had no idea of brain cancer risk! I'm terrified now:. (i mean its my brain I'm only 24.

I had 2 reg. Chest xrays a month before a head CT I had no idea of brain cancer risk! I'm terrified now:. (i mean its my brain I'm only 24.

Xray dangers: The danger of brain cancer from chest xrays and a ct scan is very, very low. Try to stop worrying so much. Take good care of yourself. I hope your tests are all normal. ...Read more

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Hand a lot of head x-rays in 1978, CT since then. Brain cancer risk?

Hand a lot of head x-rays in 1978, CT since then. Brain cancer risk?

Not specifically: All radiation exposure raises your cancer risk- but is not isolated to brain cancer. ...Read more

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I had a ct 5 days ago and 3 x-rays today pelvis/abdomen flank pain all normal. Dr wants another ct with and w/o contrast done. Is this a cancer risk?

Low risk: It does seem to be excessive the risks should be counted through out your lifetime. If you didn't have any other studies requiring X-ray radiation you'd be fine. But this seems really excessive when ultrasound or MRI can be used to get more information. Try suggesting these non ionizing radiation studies ...Read more

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Ok. Since birth 3 yo had 6 chest X-ray for meconium, one brain CT to r/o brain bleed and 4 neck x-rays for sleep apnea. All necessary. Cancer risk?

Ok. Since birth 3 yo had 6 chest X-ray for meconium, one brain CT to r/o brain bleed and 4 neck x-rays for sleep apnea. All necessary. Cancer risk?

Not to loose sleep: The modern dosing of such studies is minimal compared to decades ago. I wouldn't loose any sleepover the issue. ...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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What cancers do CT scans cause?

They don't: Hey Matt! This is a good question and I'm glad to reassure you. A typical CT scan delivers maybe 3mSv, the same as the extra radiation a pilot gets each year. Pilot dose is cumulative and nobody has shown increased cancer in pilots. Up to 20 mSV/year is okay for radiation workers and they don't get extra cancer either. Relax and give yourself a break from worrying. ...Read more

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I’ve had 7 CT’s. Am I now at a greater risk for cancer?

I’ve had 7 CT’s. Am I now at a greater risk for cancer?

Need more info: What area was imaged with CTs? What was the interval between the examinations? CTs are not likely to raise your risk for cancer measurably above your background risk. If CTs were needed for diagnosis and monitoring of some lesion, the minor risk of radiation would be worth it.
Wish you 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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Does CT scan show cancer?

Does CT scan show cancer?

Not always: Not all cancer is visible with a ct scan. There are many variables- size of tumor, location, presence or abscence of IV or oral contrast. ...Read more

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Do all cancers show on CT scan?

Do all cancers show on CT scan?

Sadly, no: Not all cancer is visible with a ct scan. There are many variables- size of tumor, location, presence or abscence of IV or oral contrast. ...Read more

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Multiple CT scan can lead to cancer?

Multiple CT scan can lead to cancer?

Please see: Radiologyinfo. Org for good info about risks from radiologic imaging. Section called radiation dose. ...Read more

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Could having a CT scan give you cancer?

Not likely: With the very rare exception of a few people with extreme susceptibility to cancer from radiation, it is highly unlikely that an average person will cancer from a ct scan. ...Read more

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Can at pt and CT scan be used to diagnose cancer?

Sometimes....: The ct that is done with a pet is primarily to improve the pet image by correcting the data the pet camera receives from the patient's body for differences in density (bones denser than muscles, then fat, then air (lung) density). Some scanners have better ct images. So, sometimes the ct makes an incidental diagnosis. However, the ct is not the same as a diagnostic ct with IV and oral contrast. ...Read more

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What are the cancers directly related to CT scan?

It is not Cut& Dried: Excessive radiation can cause cancer.So all x-rays have this potential if you give a large enough dose by repeated testing. This is why we suspect ct scans can actually contribute to a few hundred new cases of cancer in the us each year. But where and who exactly got it, is not possible to point out. ...Read more

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How can contrast make cancer stand out on a CT scan?

Blood supply: Cancers can either have more or less blood supply than the organs they are in. Without contrast the cancer and organ usually look similar in brightness. But when contrast is given the relative brightness level can become dramatically different based on the difference in blood supply and as a result the tumor is much easier to identify. ...Read more

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What to do if I had a CT scan does this mean cancer?

What to do if I had a CT scan does this mean cancer?

I don't follow...: Don't you know why your doc ordered a scan??? You should. Scans are ordered for a million and one reasons including cancer so you can't assume you had the test because you have cancer. Ask your doc about it and please never get a test without knowing why. If that is not what you meant with your question, please restate it. Best to you. ...Read more

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I just wanna know that if ct scan can cause cancer in the future?

I just wanna know that if ct scan can cause cancer in the future?

Stop worrying: The most intensive CT scan delivers 20 mSV and most deliver far less. An airline pilot gets an extra 3 mSV per year; this is of course cumulative as a cancer risk but nobody's shown increased cancer in pilots. Nuclear industry regs allow up to 100 mSV in 5 years and they have no increased cancer risk either. The non-measurable risk from CT scans is worth it when you may be seriously sick. ...Read more

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Can you tell me how contrast make cancer stand out in a CT scan?

Can you tell me how contrast make cancer stand out in a CT scan?

Vascularity: The contrast makes blood vessels whiter to stand out. Most tumors are hypervascular, they have more blood vessels. This makes them easier to see with contrast. Some tumors are not hypervascular and can be seen because they are less white than the surrounding tissues. Otherwise an MRI may be required to see the tumor. ...Read more

Dr. Tso Chen Dr. Chen
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If a CT scan does not rule out cancer does that mean it is cancer?

Dr. Tso Chen Dr. Chen
1 doctor agreed:
If a CT scan does not rule out cancer does that mean it is cancer?

Not necessarily: Sometimes the lesion maybe too small to tell on the initial scan. Follow your doctor's recommendation. Most likely you will need a follow-up scan in a few months to make sure the lesion is not changing. ...Read more

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Had a few CT scans over the summer due to an infecton. My dr told me today that this has put me at risk for cancer?

Very low risk: It is true that one of the risk factors for developing a cancer is exposure to radiation, including certain diagnostic studies (i.e. Ct scans, x-rays.) minimizing radiation exposure is always important, but these studies can be very important in your care. Http://blogs. Webmd. Com/cancer/2012/06/are-ct-scans-raising-our-cancer-risk. Html. ...Read more

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What are the chances of getting cancer from a CT scan with and without contrast in your early 20's if you are female?

Negligible: The risk is theoretical and is too small to measure. You get plenty of radiation from cosmic rays; you don't see the scaremongers lining their homes with lead to keep them out. If you need a ct scan, don't forego it. ...Read more

Dr. Steven Griggs
1 Doctor shared a insight

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