Neuroendocrine cancer impacts more than 6,000 people a year in England Sign up for our free Health Check email to receive exclusive analysis on the week in health Get our free Health Check email Get our free Health Check email Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Experts warn patients with an “invisible” cancer are being turned away by doctors and waiting years for answers Neuroendocrine Cancer UK (NCUK) says