King Charles was 'deeply touched' at the reaction from around the world after he spoke about his cancer battle, Buckingham Palace said last night.
Charles, 77, revealed in a video message that his treatment will be significantly scaled back in the New Year after he responded 'exceptionally well' to treatment following his diagnosis in February last year.
A spokesman for the Palace said: 'His Majesty will be greatly encouraged and deeply touched by the very positive reaction his message has generated.
'He will be particularly pleased at the way it has helped to shine a light on the benefits of cancer screening programmes.
'It has long been the King's view that if some public good can come from sharing elements of his personal diagnosis and treatment journey, then it would be his pleasure and duty to do so.'
The Palace also remarked on the 'scale and sensitivity of the worldwide media reaction' to the King's announcement, and added that Charles's 'thoughts and warmest wishes will remain with all those affected by cancer and those who care for them'.
In Charles's pre-recorded message, which was broadcast on Friday as part of Channel 4's Stand Up to Cancer campaign, he urged people to get screened for cancer if offered the chance, saying 'early diagnosis quite simply saves lives'.
As part of the campaign, the King also promoted a new online Screening Checker for people without symptoms to find out if they're eligible for a free cancer check.
Michelle Mitchell, chief executive of Cancer Research UK, which backs the online tool, said last night: 'Since launching our new cancer Screening Checker, we've seen around 100,000 visits so far from people seeking information about cancer screening, with most of these taking place after His Majesty the King spoke openly about his own cancer journey during the Stand Up To Cancer live show.
'This response shows just how important open conversations about cancer can be.'
Veteran broadcaster Jonathan Dimbleby, a long-time friend of Charles, said the King's message would help 'many thousands who would have died' to be less frightened of getting checked out and seeking life-saving treatment.
Referring to the 1,000 per cent surge in people going to the NHS website for advice after the King's original admission that he had cancer, Mr Dimbleby said: 'It demonstrates the unique role of the sovereign. No one else could have done this. It was unrivalled.
'It takes guts to say 'I've got cancer', and the fact Charles came out and said that will save lives.'
Meanwhile the Princess of Wales, who has endured her own battle with cancer, attended a light display at Royal Marsden Hospital in London last night in support of the Royal Marsden Cancer Charity.
