Rhabdoid Tumor Explained After Influencer Kate Hudson's Daughter Dies

Eliza Adalynn Moore, the 2-year-old TikTok star featured on the popular HeyEliza account, has died after being diagnosed with a rare form of cancer.

Moore's mother Kate Hudson, an influencer, announced on Instagram that she died on Sunday, which was Father's Day.

Paying tribute to her daughter, Hudson wrote: "My sweet baby girl. I don't know how we will go on without you. I know we promised you we would be brave, just like you.

"But we are broken. Even though we know you are no longer suffering or in pain or frustrated with what life had become.

"I thought that because we knew you were dying, that your death would not feel so sudden. But it did. I wasn't ready to see what I saw."

Moore, who had 5.5 million TikTok followers, had been battling a form of childhood cancer known as rhabdoid tumor since she was 10 months old, according to her GoFundMe page.

Despite having "countless surgeries, chemotherapy, radiation and study drugs to help her in her fight," the cancer continued to grow, the page said.

Before her death, the page described Moore as "playful, energetic, sassy, funny, intelligent, joyful, sarcastic, bossy, kind, and fascinated with life."

The page had raised $78,668 by Tuesday, after it was set up in November 2020.

Around 20 to 25 children are diagnosed with rhabdoid tumor in the U.S. each year, according to Boston Children's Hospital.

What is Rhabdoid Tumor?

A rare form of cancer, rhabdoid tumors are a type of the disease that can start in soft tissue around the body, such as in the kidney or liver. In Moore's case, thousands of cancerous nodules had "completely obliterated" her right lung and spread to her heart and diaphragm, according to her GoFundMe.

Rhabdoid tumors usually develop in babies or children, with around 90 percent of cases caused by a mutation in a specific gene.

The most common signs and symptoms of rhabdoid tumor include stomach pain, the disorder cerebral palsy, paralysis of nerves on the surface of the brain, fever, headache, blood in the urine, and swollen lymph nodes. Children may also experience nausea and vomiting, a poor appetite, and weight loss. Fewer people have symptoms such as anemia, and paralysis on one side of the body.

To treat rhabdoid tumors, surgeons may try to remove the tumor mass. Chemotherapy, where powerful drugs are used to kill fast-growing cells in the body, and radiotherapy, where radiation is used to kill cancer cells, can also be used on patients.

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A stock image shows a child in hospital. Eliza Adalynn Moore had "countless" surgeries, according to her GoFundMe page. Getty Images