Can a CT scan tell the difference between diverticulitis and colon cancer?


Can colon cancer be mistaken for diverticulitis?

Introduction. Clinically right-sided diverticulitis represents one of the greatest mimic of acute appendicitis. At the same time, clinically colon cancer may mimics diverticulitis. With current thin-section helical CT, most healthy appendixes can be revealed and the final aim is to rule out colon cancer.

How accurate is a CT scan for diverticulitis?

Computed tomography imaging has become by now the gold standard in the diagnosis and staging of patients with acute diverticulitis. CT imaging with intravenous contrast has excellent sensitivity and specificity, reported as high as 98% and 99% [9, 10].

Can an abdominal CT scan show colon cancer?

Conclusion: Colon cancer is undetected in 20% of abdominal CT examinations in patients subsequently proven to have colon cancer at colonoscopy.

Should I have a colonoscopy if I have diverticulitis?

Your doctor may recommend colonoscopy six weeks after you recover from diverticulitis, especially if you haven’t had the test in the previous year. There doesn’t appear to be a direct link between diverticular disease and colon or rectal cancer.

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What can be misdiagnosed as diverticulitis?

Common alternative conditions that can clinically mimic diverticulitis include small bowel obstruction, primary epiploic appendagitis, acute cholecystitis, appendicitis, ileitis, ovarian cystic disease, and ureteral stone disease.

What mimics diverticulitis on CT scan?

Primary colon carcinoma is the main consideration in the differential for findings of diverticulitis on CT (Fig. 10) because it may present with eccentric or circumferential wall thickening, varying degrees of inflammation, and signs of obstruction. Perforated colon carcinoma may mimic diverticulitis.

What is the life expectancy of someone with diverticulitis?

support that that the recurrence rate after an initial episode of diverticulitis treated medically is about 1.5% per year. Also, the mean age of patients with the first episode of diverticulitis is approximately 65 years, and such patients have an average life expectancy of 14 years.

Would diverticulitis show up in blood work?

Diverticulitis is diagnosed based on symptoms, laboratory tests, and an abdominal CT scan. A complete blood count (CBC) is a laboratory test used to check for an elevated white blood cell count, which can signal infection or inflammation.

Can a CT scan detect bowel problems?

Computed tomography (CT) of the abdomen and pelvis is a diagnostic imaging test. Doctors use it to help detect diseases of the small bowel, colon, and other internal organs. It is often used to determine the cause of unexplained pain. CT scanning is fast, painless, noninvasive and accurate.

Can you see colon polyps on a CT scan?

How are polyps diagnosed? Polyps are diagnosed by either looking at the colon lining directly (colonoscopy) or by a specialized CT scan called CT colography (also called a virtual colonoscopy).

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Will colon cancer show up on blood work?

No blood test can tell you if you have colon cancer. But your doctor may test your blood for clues about your overall health, such as kidney and liver function tests. Your doctor may also test your blood for a chemical sometimes produced by colon cancers (carcinoembryonic antigen, or CEA).