Derek Cornelius, 71, a retired social worker from West Parley, Dorset, was given months to live after doctors first found the 22lb tumour at Royal Bournemouth Hospital last October.Derek Cornelius, 71, a retired social worker from West Parley, Dorset, was given months to live after doctors first found the 22lb tumour at Royal Bournemouth Hospital last October.Read MoreHealth News | Mail Online