Colorectal Cancer

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Colorectal Cancer

Diagnosis, Imaging, and Screening

NEWS:

Doctors less deft at colonoscopy as day goes on

Fecal Occult Blood Testing Effective In Colonoscopy Screenings

Nearly Half of Primary Care Physicians Refer for Colonoscopy More Frequently Than Guidelines Recommend

Negative Colonoscopy Now Might Mean No Need for Another

US Colorectal Cancer Screening Strategy Questioned “"The new analyses may show that primary colonoscopy screening is best limited to subgroups," the editorialists note. They speculate that "for most of the population, going the distance may well provide small benefits with larger costs and harms. Drs. Harris and Kinsinger also raise an issue that has been a lightning rod for criticism of breast and prostate cancer screening: overdiagnosis. "The issue of overdiagnosis, a term that has primarily been used with other cancers, should be considered because overdiagnosis is also a major problem for colonoscopy screening." We are taking our eyes off the ball. The "great majority" of findings at colonoscopy are not cancers, but instead are small low-risk adenomas and nonadenomatous polyps, they emphasize. Current practice in the United States dictates that all polyps, regardless of size, be removed. This practice, which has "an uncertain net effect" on the patient, has led gastroenterologists astray, they note. "When our goal changes from reducing [colorectal cancer] mortality within reasonable levels of harms and costs to eradicating every existing polyp, we are taking our eyes off the ball," they write.”"

ARTICLES:

JOURNAL ARTICLES:

FDG PET and PET/CT for Colorectal Cancer. (Methods Mol Biol. 2011)

Who Needs Colonoscopy to Identify Colorectal Cancer? Bowel Symptoms do not Add Substantially to Age and other Medical History (Alimentary Pharmacology & Therapeutics. 2010)

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