"I knew it was bad, I just asked how long have we got," says Kathie. "He (the surgeon) said, with this type of tumour we talk about it in a matter of months."
The Potts family have been fighting ever since. Searching, hoping for a miracle cure.
With all Australian options exhausted, the Potts family are now looking to treatments and trials overseas.
Mexico offers a unique intra-arterial chemotherapy treatment combined with Immunotherapy.
"It's where they feed the chemotherapy drugs up through an artery in the groin, to help it get through the blood brain barrier," explains Kathie. "It costs around $25,000 Australian per treatment. They expect she'll need eight to 12 treatments."
There is no Australian Government support or private health care support for the family, who will relocate to Mexico to be by Annabelle's side.
The family leave on June 12, two days after Annabelle's fourth birthday and are asking for the community's help to fund the project.
"We need help to save our little girl," says Kathie.
"This treatment in Mexico has given us hope. Annabelle is five months past diagnosis, the doctors in Australia only give us nine months to live. We have to do something. We have to try everything."
The Canberra community have rallied and raised more than $170,000 for the family so far.