A 14-year-old girl has died of bone cancer after battling the strongest tumour her doctor had ever seen.
Mina Popović and her family travelled to the US for treatment for Ewing sarcoma, an aggressive cancer that forms in bone or soft tissue.
The rare cancer occurs most often in children and young adults.
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Its key symptoms include chronic bone pain and swelling, possibly with a lump. It can spread to the lungs or other bones.
Mina fought the disease for more than a year and her tumour was five times more deadly than the worst one her doctor had treated before, her father said.
Her family sold works of art to help pay for her treatment in the US, as reported by Need To Know.
They have now appealed to members of the public to help pay for the transportation of Mina’s body back to her home city Belgrade, Serbia.

Her father explained: “Our daughter Mina unfortunately lost her battle with the terrible Ewing sarcoma.
“Our fight lasted over a year with the support of all doctors and your help.
“We did everything we could, but the sarcoma was too strong.
“It was five times stronger than anything the doctor had ever seen before.”
Mina, who attended the Branko Ćopić Elementary School in Belgrade, reportedly underwent treatment at the Johns Hopkins All Children’s Hospital in Florida.
It will reportedly cost around £10,740 ($14,500 USD) to send her body home.
After launching an online appeal for donations, her dad said: “This is the first time we’ve asked for help.”
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