The mother of a two-year-old boy almost mauled to death by his grandmother’s dog says she is outraged the Jack Russell cross is unlikely to be destroyed.

Jamie MacLean says she was just metres away when she heard her son Zane scream at a relative’s home last Monday and was shocked by what she found.

“(The dog) turned on him and he nearly mauled him to death,” she said.

Camera Icon Zane underwent surgery to re-attach his ear. Credit: 7 News

“He would have kept mauling him.”

Zane Knight’s ear was torn off and his face bitten as his devastated mum and sister Sabrina tried to intervene.

“(The dog) kept running back for more and there was just blood everywhere,” Zane’s sister Sabrina said.

“Zane was screaming, I was screaming, I didn’t know what to do.”

Camera Icon Zane underwent surgery to re-attach his ear. Credit: 7 News

The two-year-old suffered severe injuries and was rushed to the Royal Children’s Hospital where he underwent a four-hour operation to reattach his ear.

But when he developed fluid in lungs, little Zane ended up in intensive care.

Luckily the two-year-old was able to return home on Thursday as he recovers from the injuries.

Ms MacLean said she wants the dog put down before any other child is injured.

“It’s very upsetting and very worrying,” she said.

Camera Icon Jamie MacLean with her son Zane. Credit: 7 News

In a statement, the Goldfields Shire said the dog had “no prior history of attack”.

“We are now waiting on an independent assessment by a vet to determine any temperament and health issues,” Central Goldfields Shire CEO Lucy Roffey said in statement.

The attack comes just days after a Melbourne girl was “tossed like a ragdoll” by her family’s dog.

A Newcastle boy also needed surgery to re-attach part of his ear after he was mauled by a great dane that escaped from a home and attacked the child as he was out on his scooter with his mum and sister.