When Glad Downes turned 70 she stopped having mammograms, assuming her age meant she was no longer at risk.
Six years later she read an article about television personality Helena McAlpine's breast cancer battle, which ended in her death last year.
That prompted the 76-year-old to do a self-examination, her daughter and former Miss Universe, Lorraine Downes, told a Pink Ribbon event at Parliament this morning.
"She discovered a lump the size of a golf ball. This led to a double mastectomy, chemotherapy and radiation treatment. If it had been found earlier, she would have needed less toxic treatment. And if it had been found later, it might have been too late.
"My family was shocked ... as, like mum, we did not know that the breast cancer risk was as high in the 70s as it was at 50."