The bowel.

This episode of Case Notes looks at the bowel, one of the biggest organs in the body. Dr. Mark Porter's studio guest is Dr. Anton Emmanuel, Consultant Gastroenterologist and Senior Lectuer in Neurogastroenterology at University College Hospital, London. We hear about cancer of the bowel, Crohn's Disease and Ulcerative Colitis. Reporter Barbara Myers visits the Mary How Trust for Cancer Prevention in Sussex where, since 2005, they have offered a free screening service.