BBC Scotland political editor Glenn Campbell has been diagnosed with a brain tumour.
The 47-year-old has been off air following a bike accident in June – which left him with ten broken ribs.
He said it is possible the fall “helped revealed the tumour earlier than might otherwise have been the case”.
The broadcaster will now undergo surgery on Thursday, telling his BBC colleagues he is as “optimistic as it is possible to be”.
Addressing his recovery from his accident, he said that his bones have “mended really well and he is feeling “great” – but added “that is not the full story”.
He said: “Doctors have recently discovered a further health issue that I have to deal with.
“I have been diagnosed with a brain tumour and will have surgery for that on Thursday August 10.
“That’s the only way to find out exactly what type and grade the tumour is and to decide on further treatment.
“I don’t think the tumour caused my accident or vice-versa, but it is possible that falling off my bike has helped reveal the tumour earlier than might otherwise have been the case.
“I am as optimistic as it is possible to be and I have already started researching charities to support with some fundraising.”
Gary Smith, the head of news and current affairs at BBC Scotland, said: “Our heartfelt best wishes go to Glenn and his family as he undergoes treatment.
“Glenn’s not only a highly talented political editor, he’s also a very popular colleague in the newsroom.
“Everyone at BBC Scotland is thinking of Glenn and is looking forward to seeing him recover and return to reporting duties.”