Christmas 2012 was meant to be Ron Walker's last. Rather than accept defeat, the prominent businessman flew to the US to join the trial of a drug that has cleared him of cancer. Now he is hell-bent on making that drug available in Australia.

Holograms of Ron Walker's body spin on the computer screen inside a small office at the Peter MacCallum Cancer Centre in Melbourne. Professor Rod Hicks, director of cancer imaging, is sitting in front of a glowing screen. He points to the first image and its exquisite, three-dimensional detail. "I call this the dead man walking scan. It's incompatible with ongoing existence."

Walker's towering six foot six (1.98m) frame has been shrunk to the small holographic image on the computer screen and it is covered in red dots. The image is dated November 2012 and it was created from technology that overlays CT and PET scans of Walker's body. Three months earlier a similar image had revealed only a few red dots. The dots typically mark where cancer was growing inside Walker's body and it was everywhere. Six tumours were clustered in his brain. The cancer had colonised his lungs, reducing his breathing. Eventually those tumours would suffocate him if the pressure from the growing brain tumours didn't force him into unconsciousness and kill him first. The cancer was also in Walker's bones and his left adrenal gland was no longer gland but cancer instead. The picture Hicks is looking at is a portrait of a dying man.

For more details, go to: http://www.smh.com.au/business/i-dont-want-to-die-i-still-have-things-to-do-keytruda-wins-ron-walkers-war-on-cancer-20150130-1323s8.html