Can I be screened for colon cancer with a CT scan instead of a colonoscopy?

Sometimes. Ct colography is never meant to replace a colonoscopy. At high volumn centers, the detection sensitivity of ct exam is indeed comparable to colonoscopy but you need to know the rate of detection of your imaging facility. Bowel prep is required for both procedures - no way around the unpleasant process. Beware that there is significant radiation exposure with the exam.
Maybe. Not standard of care . Be aware you are awake and if find polyps needs to repeat bowel prep and perform colonoscopy on separate day.
As you can see from. All of the reasonable answers, the answer is a definitive no. If you find someting by ct (with prep) you will need another prep and endoscopy to prove the answer. Each is charged. Two preps are worse by double one. And conscious sedation is sufficient 9 times out of 10, and lower co-pay.
You can. It is a screening option. However if a polyp is found then need to repeat the procedure with a colonoscopy and polypectomy.
Yes. Virtual colonoscopy can screen for polyps. If one is found a traditional colonoscopy will be needed to remove it. Virtual colonoscopy is good for follow-up after a polyp has been removed.

Related Questions

Does a CT scan detects colon cancer? Or colonoscopy should be done?

CT vs. colonoscopy. Although CT can identify some colon cancers, it can certainly miss many, particularly the smaller (still potentially curable) ones. Colonoscopy is the gold standard for identifying and sometims curing colon cancer. Read more...
?Early detection tes. CT scan is not a good Test for early detection of Colon Cancer, so Colonoscopy is the preferred test because it accomplishes 2 objectives...detect polyps/precursors of colon cancer and remove them at the same time which eliminates the risk of Polyps changing into cancer. If you have difficulty with having Colonoscopy, then you should ask your doctor to suggest some alternative tests for checking. Read more...

Would advanced colon cancer show up on a CT scan of my abdomen? Reg CT scan not virtual colonoscopy.

Depends. A ct scan does not evaluate colon cancer very well. If there is "advanced" cancer as you asked, possibly a large colon mass could be seen, or if there is metastatic disease to the liver which may also be seen on ct scan. Otherwise, locally advanced cancer contained in the colon or lymph nodes may not be seen on ct scan. Read more...
Imaging/biopsy. The imaging modality of ct scan could show findings that would be concerning for cancer, mass around your colon, enlarged lymph nodes in the same area. However, the diagnosis is made at biopsy, a piece of the mass under the microscope of a pathologist. Often the ct scan leads to the biopsy. Good luck, it is important to get the evaluation completed. Read more...
Likely not. On occasion you can see a mass in the colon, but a mass is usually obscured by stool or collapsed bowel. Read more...
Not if it's small. Most abdomen ct are routine ct without adequate prep of the bowels. A large mass may be visible on ct but a small one may be obscured by stools. Ct colography is virtual colonoscopy where there is additional colon prep to look for even small colon polyps. Read more...

Chance of developing colon cancer 20 months after colonoscopy removal 5mm polyp removed. Having ct scan with and without contrast for left quad pain?

See below. If the colonoscopy was done properly, you are very unlikely to have colon cancer 20 months after the procedure. 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. Read more...

How likely is colon cancer in 31 year old? Doc said if CT Normal for RUQ pain then colonoscopy next. Is this necessary? No other symptoms

Not common. But possible. A colonoscopy may help also finding the diagnosis, cancer or non-cancer related. There are a variety of possible colon related conditions that may be discovered and diagnosed with a colonoscopy. Always remember to ask your providers what are the goals for a specific test or procedure. Read more...
Perhaps not? Generally speaking, a 31 year old patient with RUQ pain is unlikely to need a colonoscopy, especially if a CT is normal. It would be rare indeed for colon cancer to be causing these symptoms at your age. I assume you've had a normal abdominal ultrasound. If you haven't had an ultrasound that would be the first test to do before a CT. An online consultation at Health Tap might be helpful. Read more...

If 61 yr m had a -ve whole body pet+ct done for renal mets 1 yr ago, how long we can postpone colonoscopy (first time)screening for colon cancer?

You shouldn't . Although a pet ct will show some types of cancers and is part of a metastatic work up, it will not detect precancerous polyps and can miss small cancers. I would recommend a screening colonoscopy. Read more...
Let me be. Sure i understand. She had a renal cancer removed, and that was more than a year ago, and pet showed no metastasis. She is asymptomatic and feeling well? There are advisories that colonoscopy should be done once each decade after 50. She would seem eligible for that, but there is no rush. Read more...
Please get the . Screening colonoscopy. Pet/ct should see a large colon cancer, but small cancers and polyps could be missed, and physiologic colon activity can obscure colon cancer as well. Optical colonoscopy should be performed at age 50 and every 10 years thereafter for colon cancer screening. Read more...
Have colonoscopy now. In case you’re wondering any relationship between RCC or colon cancer etc. There is no such unless the RCC metastasized to colon. You had a negative CT for mets so you probably had stage I or II RCC & your likelihood of 5-year survival rate > 90 % [stg I] 75- 95 %[stg II].Usually colon cancer screening should start at 50.Since you had none before you should have one now like any other person. Read more...

Colon cancer age 30?? RUQ pain, fecal occult test negative- CT- Normal- (GI tract WNL no obstruction or perforation) should I get colonoscopy for pain

Probably. Colon cancer is unlikely in your age group, but other GI and colon diseases can also cause such symptoms. Have you had your gallbladder evaluated? Remember, colon cancer has minimal symptoms and CT is NOT a great test for it. In sum though low yield I would likely recommend colonoscopy to you based on what I've read. Read more...

Grandmother died of colon cancer in her 70s. Granddaughter has had 3 clean colonoscopies in her 50 s. How often should I be screened?

Depends. If your gm is the only family member with colon cancer, then you should begin screening at age 50 and then every 10 years if normal. If 1 or 2 adenomas <1cm = 5 year followup. If 3 adenomas or 1 adenoma >1cm = 3 year interval. Read more...
Average Risk. Your grandmother died at an age that would not classify her as a familial form of colon cancer. Without knowing anything else, you fit the average risk profile and should be screened every 10 years starting at age 50. Read more...
Yes, over 50 . Every one over 50 years should undergo colonoscopy. If there is a history of colon cancer in the family, it can be done earlier. The biggest discomfort is the bowel prep to get ready for test. If you don't want a colonoscopy , it can be done by ct scans and performing virtual colonoscopy. Early colon cancer usually begins as a polyp and is curable. Colonoscopy is generally repeated every 5 years. Read more...

Outside of being screened often for colon cancer (colonoscopies), what can I do to lower my colon cancer risk as an ulcerative colitis patient?

Most important. is polyp removal through recommended colonoscopy screenings. The longer you have had UC/inflammatory bowel disease, and if more than 1/3 to 1/2 of your colon is involved, the greater your risk of developing colorectal cancer. Controlling bowel inflammation by complying with your medication regimen is likely to be preventive. Avoid alcohol, tobacco, obesity. Low fat/high fiber diet, NSAIDs +/- Read more...

Do colonoscopies screen for colon cancer?

Yes. There is only one test that has been shown to improve survival and that is checking the stool for blood. One should have a colonoscopy at age 50. So it does allow the physician to view the colonic mucosa and see if any abnormality is detected. Read more...
Yes. That is one of the main reasons for colonoscopy. The gastroenterologist usually can see every part of the colon wall and biopsy suspicious lesions. Often this is curative if found early. While not completely true, consider all polyps to be future cancers and most cancers come from polyps. Screening should begin at age 50 unless there is a history to suggest beginning earlier. Read more...