Thanks for your comments and insights.
I understand the problem - we do need to raise awareness of Head and Neck cancers. My feeling is that since we already have a Mouth Cancer awareness week and other events, we should use them as the platforms for talking about Head and Neck cancers rather than start all over again for the individual cancers or the new term 'head and neck' cancer thereby losing the profile and goodwill already created.
If we clearly say what we mean, then the public will understand 'mouth cancers' to mean 'head and neck' cancer. The MCF website already refers to all head and neck cancers and the message board has long had members with the different head and neck cancers sharing much in common.
For those who haven't yet, please take part in the POLL, if so inclined, please post your thoughts.