3-year-old cancer patient gets heartfelt send-off with a song after completing chemo

A tiny cancer patient gets a musical send-off from the medical staff at her hospital

When Hadley Gray was two-and-a-half years old, her doctor diagnosed her as suffering from acute myeloid leukemia.

Acute myeloid leukemia is cancer that starts in cells that would normally develop into different types of blood cells. It starts in the blood-forming cells of the bone marrow, and this aggressive cancer can quickly spread to other parts of the body.

In order to fight her cancer, Hadley had to spend the last 6 months of her life at the St. Jude Children's Research Hospital in Memphis. There she received life-saving chemotherapy treatment, and as a result, lost all of her pretty brown curls.

Hadley's mom Brittany Edgeworth Gray, posted a moving video on Facebook, registering her last day in the hospital.

"Our patients have the cutest S-M-I-L-E. Our patients have the sweetest H-E-A-R-T. Oh, we love to see you every day. But now's the time we get to say, pack up your bags, get out the door, you don't get chemo anymore."

The staff of St. Jude Children's Hospital, Facebook, 10th of August 2018.

In her video Gray captured the hospital staff, nurses, and doctors, walking into Hadley's room with balloons in their hands and singing a goodbye song.

They were telling Hadley that as much as they loved having her around, it was time to pack her bags and go home - no need for any more chemotherapy.

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Since February, little Hadley has been living at the Memphis hospital, eight hours away from her home in Bluff City, Tennessee, but now, after 6 grueling months of therapy, she got to go home.

Hadley is now officially in remission, and at a low risk of relapse, but she will continue to have follow-up appointments every four months at St. Jude.

Hadley's mom praised St. Jude, a hospital that receives the majority of its funding from individual contributions, for saving her child's life.

St. Jude Children's Research Hospital is a is a pediatric treatment and research facility founded in 1962. It is focused on children's catastrophic diseases, particularly leukemia and other cancers.

Although it costs $2.4 million a day to run the hospital, there is no cost charged to the patients for treatment.

Childhood cancer is every parent's nightmare, but luckily due to medical advances, there are many success stories of tiny tots who bravely fought off the dread disease and regained their health.

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3-year-old cancer survivor is flower girl at the wedding of her bone marrow donor