For what patient groups (if any) do you routinely recommend screening colonoscopy prior to radiation for prostate cancer?  

As a cancer care provider treating both GI and GU malignancies, I see this as a commonly. In many healthy men, an elevated PSA may be what allows them to "plug in" to the American health care system, often the first time in many years. Considering most prostate cancer is detected by an elevated PSA,...

Given the low likelihood of finding an asymptomatic synchronous rectal cancer, I do not routinely recommend a screening colonoscopy prior to prostate radiotherapy.  The patients whom I refer for sigmoidoscopy/colonoscopy are those with rectal bleeding or other rectal symptoms that have not been...

I would start radiotherapy, but recommend screening colonscopy some time soon if never had one.