ST. PETERSBURG, Fla. — This week's Everyday Hero has dedicated his life to helping children battling cancer.

It's a struggle that Dr. Colin Moore is familiar with.

Moore is a pediatric hematologist-oncologist at St. Petersburg's Johns Hopkins All Children's Hospital. He was diagnosed with cancer before his 16th birthday.

"Late in my sophomore year of high school, I was playing on the high school baseball team at the time, and I started having some pain in my right lower leg," Moore said.

It was discovered that Moore had a tumor growing in his leg which had spread to his skull and optic nerve.

"I was diagnosed with bone cancer called Ewing sarcoma," he said. "That was two days before my 16th birthday."

What followed was a year of therapy including chemo, surgery, radiation and a bone marrow transplant.

Now on a recent daily round, he stopped by to see 8-month-old Logan, who was spending time with mom and dad.

Back when Colin was in medical school he spent some time in the pediatric oncology section.

"Listening to the families and hearing about their concerns, and each room that I went to, I found a little bit of me and a little bit of my parents sitting in front of me, talking to me," Moore said.

"And I felt I could really understand these patients. I could really be able to give something back."