His co-workers and patients at the Riverina Cancer Care Centre (RCCC) were shocked to learn of his death late last week.

Dr Woo moved back to Perth in late 2016 to be closer to family as he battled with illness and he died peacefully in his sleep on January 3, aged 46.

“Tony was only with us for a short time but in that time he certainly made a mark with his patients,” managing director Damien Williams said.

Dr Woo commenced practising in Perth before spending time in Canada, Singapore and South Australia.

He joined the Riverina Cancer Care Centre in early 2014 as a radiation oncologist.

In addition to his work at the RCCC, Dr Woo travelled to Griffith on a fortnightly basis to provide a consultation service for up 30 patients per visit.

“There is a large patient group across the entire Riverina that he came in contact with, made an impact on and cared for,” Mr Williams said.

Dr Woo was also admired by his co-workers.

Co-workers recall he was always eager to see new patients despite an already busy schedule.

“In looking back, Tony put the health of his patients before his own while he battled on and tried not to concern staff with his own worries,” chief physicist Nick Menzies said.

Dr Woo was also committed to training doctors and his professional interests included advancing the case for a skin cancer radiation therapy treatment machine.

Dr Woo was a committed family man who enjoyed spending time with his wife Anita and their two children, Jennifer and Michael, on weekends.

Local radiation oncologist Dr Anupam Chaudhuri is sharing the patient load with a locum radiation oncologist, Associate Professor Phillip Yuile.