Optical biopsy during surgery for colorectal belly tumors

This study tests a newer kind of imaging (ultrasound plus light-based measurements) to help doctors tell rectal cancer apart from other tissue during surgery. You may be able to take part if you’re having surgery for rectal cancer and the tumor is close enough to the anus.

This study tests a new device that helps doctors remove abnormal growths, or lesions, from the colon or rectum. It aims to see if the device makes it easier to remove these growths completely and safely.

This trial compares surgery versus an endoscopic procedure for people who had a colon polyp removed but some cancer cells may still be present at the edges. The goal is to see which approach leads to better outcomes and fewer side effects for early-stage colon cancer.

This trial tests a targeted “optical biopsy” (using a special light-based exam to sample tissue) to better assess rectal scars after standard chemotherapy and radiation before surgery. It may help surgeons choose the most appropriate way to operate on rectal cancer.

This study tests new bipolar scissors that may make removing non-cancerous or early-stage colorectal growths during a colonoscopy safer and more effective. If you're scheduled for this procedure, the new scissors could improve your outcome.

This trial tests a special dye that helps surgeons see tumors more clearly during surgery, followed by a light therapy to destroy any remaining cancer cells. It is for people with advanced or returning colorectal cancer who are already scheduled for surgery.