Thank you, Sqad. Incidentally, and this may be a warning to others, the discovery of the tumour came about almost by accident ! I was prescribed a blood thinner ( Riveroxiban) for my recently diagnosed Atrial Fibrillation and after a couple of days had a show of blood after poos. It was the subsequent Colonoscopy that revealed the tumour. There had not been any previous symptoms or pain and I have always been very healthy, fit and active, working up to my present age (80+), so cancer can truly be described as a 'silent killer. A five year extension seems a pretty good prospect from my perspective ! Thanks again.
D