Three US brothers diagnosed with the same type of eye cancer

Caison, Tristen, and Carter Rush.
Caison, Tristen, and Carter Rush. Photo credit: GoFundMe

Three brothers in the US are undergoing chemotherapy after all being diagnosed with the same type of eye cancer.

Carter, seven months, Caison, 3, and Tristen Rush, 5, from the state of Atlanta, have all been diagnosed with retinoblastoma over the past five years, the ABC reports.

"I had been told by doctors most of my life that because of the genetic mutation with the retinoblastoma that I have in both eyes I had a 50/50 chance of passing it on," mum Angie said.

Her sons are undergoing eye examinations every month as well as chemotherapy. As costs mounted, they were forced to sell their home and stay with family instead.

"The encouragement, people saying they're thinking of us, it's been wonderful," she told the ABC's Good Morning America programme. "The monetary support has been wonderful, too."

Jeanne Rush, the boys' grandmother, has started a GoFundMe page which has raised close to US$65,000 (NZ$101,514).

"Praying for the recovery of these beautiful kids," one donor said.

According to the US Cancer Society, retinoblastoma starts in the retina and starts to develop before birth.

"These children also have a higher risk of developing cancers in other parts of the body," the society says on its website.

"If retinoblastoma tumours are not treated, they can grow and fill much of the eyeball.

"Most retinoblastomas are found and treated before they have spread outside the eyeball."

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