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Doctor insights on: Can Cat Scan Detect Cancer

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Dr. Barry Rosen
4,224 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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Will various x-rays and one cat scan in small child cause cancer?

Will various x-rays and one cat scan in small child cause cancer?

Probably not: Although all radiation is cumulative, diagnostic x-rays fall well within the safe level. If x-rays or cat scans are diagnostically necessary, the chance of damage from not being able to visualize the problem is much greater than the chance of damage from the necessary diagnostic modalities. ...Read more

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I had a cat scan done of my kidneys & bladder can a car scan show cancer and or masses formed ?

I had a cat scan done of my kidneys & bladder can a car scan show cancer and or masses formed ?

Yes: A CT scan is an excellent way of assessing the kidney for tumors, abscesses and other issues. A blockage of the ureter also will be evident, as can occur with a stone or tumor. The bladder, if normal on CT, could still have non-invasive cancer that does not distort the bladder wall. A cystoscopy where the urologist looks into the bladder with a scope via the urethra is needed to be sure. ...Read more

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Is it true that colon cancer can take years before causing symptoms? So a cat scan i had just a month ago showing nothing could be good news?

Is it true that colon cancer can take years before causing symptoms? So a cat scan i had just a month ago showing nothing could be good news?

Yes...: Colon and rectal cancer is usually a slowly growing tumor in the colon or rectum. From its earliest beginnings as a colon polyp its estimated to take 10-15 years to grow into a cancer. A standard ct scan of the abdomen/pelvis is not a good or accurate test for early detection of colon cancer. Colonoscopy is the best test for early detection of polyps or cancer in the rectum and colon. ...Read more

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Do to a fall, my 6 week old infant needed a cat scan. What are the side effects of a scan at such a young age? The dr said cancer but how soon?

Do to a fall, my 6 week old infant needed a cat scan. What are the side effects of a scan at such a young age? The dr said cancer but how soon?

Wouldn't worry: There is a tiny increase in cancer risk later in life children who have a bunch of ct scans. We're exposed to unavoidable natural radiation every day, and compared to this, the dose you get from a worthwhile ct scan is trivial. I'm glad junior is okay and has a parent who care so much. ...Read more

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What are the chances of false negative mris and cat scans? What are the odds that an MRI and a cat scan would both show no cancer when there really is cancer present? What about the opposite, where they would both should cancer when there really is none?

What are the chances of false negative mris and cat scans? What are the odds that an MRI and a cat scan would both show no cancer when there really is cancer present? What about the opposite, where they would both should cancer when there really is none?

No test is 100%: The sensitivity of MRI and ct scans depends partly on the type of cancer and the location in the body. In general, they can find tumors that are a few millimeters in size which can be 10's of millions of cancer cells. If all scans are negative a patient may be considered in remission, but with cancer it is really only the "test of time" that ensures no microscopic cells are left. ...Read more

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Can an ultra sound or a cat scan detect colon cancer?

Can an ultra sound or a cat scan detect colon cancer?

Other good tests: Early colon cancer is not easily visible on Ultrasound. CT scan is under trials to find out its utility. Right now the best test is Colonoscopy where it is easy to visuallise early colon cancer and precursor lesions. Ask your doctor in case you may need one done. it is recommended for all adults aged 50 years or earlier if there is a family history of colon cancer. Ask your doctor's advice. ...Read more

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What kind of cancers or health issues can be found with abdominal CAT scan with dye?

What kind of cancers or health issues can be found with abdominal CAT scan with dye?

Many, many: abnormalities, including cancers, inflammatory disorders, vascular problems, congenital abnormalities, post traumatic abnormalities, bowel obstruction and multiple other things too numerous to list. ...Read more

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I've had a vcug, cat scan and x-rays. Can the radiation from those tests cause cancer?

I've had a vcug, cat scan and  x-rays. Can the radiation from those tests cause cancer?

NO: Do not worry, occasional diagnostic x-ray scans ( ct< x - rays etc) will not cause cancers., amount of radiation is low. ...Read more

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Hello i had a cat scan done on pelvic and abdoan done today the are looking at lymph nodes what does lyphoma orlung cancer look like on cat scan?

A mass.: Lymph nodes are scattered throughout the body and are normal structures. They should not be larger than 1 cm in diameter. Lymph nodes that contain metastatic disease, or lymph nodes containing lymphoma, are detected on a cat scan based on size over 1 cm. A pet/ct has an additional criterion, increased glucose uptake, to suggest cancer. ...Read more

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Dr. Michael Korona
1,791 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