Professor Brian Saunders is a specialist gastrointestinal endoscopist and luminal gastroenterologist. His main clinical interests are the diagnosis, treatment and prevention of intestinal diseases through flexible endoscopy. He has performed more than 25,000 colonoscopies and has a particular interest in therapeutic colonoscopy especially advanced polypectomy; endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD). Much of his work also involves colonoscopic screening and surveillance of those patients at increased risk of developing colorectal cancer.