How brain surgeon Henry Marsh went from doctor to patient: 'I blurted out the question we all ask - how long have I got?'

For years, the author and neurosurgeon dismissed symptoms of prostate cancer. Then he finally got the diagnosis he'd been avoiding ... It seemed a bit of a joke at the time - that I should have my own brain scanned. I should have known better. I had always advised patients and friends to avoid having brain scans unless they had significant problems. You might not like what you see, I told them. I had volunteered to take part in a study of brain scans in healthy people. I was curious to see my ow...