Michael Strahan's daughter Isabella celebrates last day of radiation after brain tumor diagnosis

Michael Strahan's daughter Isabella is celebrating her final day of radiation therapy after undergoing emergency surgery to treat a cancerous brain tumor in October.

The 19-year-old student documented the momentous occasion in a video published to her YouTube channel on Tuesday that saw her get ready in the morning before traveling to the New York Proton Center to receive her last treatment.

"I'm very excited to finally be done," Isabella told the camera. She added, "It's been a long six weeks and I'm very happy to hopefully heal my head after all of this, because the side effects and everything get to you and I'm hoping I won't be dizzy."

After completing her final radiation treatment, Isabella stepped outside to find her family and hospital staff members all cheering for her and waving celebratory signs. She then became visibly emotional as she hugged her twin sister, Sophia, and dad. 

Another clip showed the moment Isabella, holding a small bouquet of flowers, rang the bell to signify the end of her treatment. "So excited to ring that bell," she said. "Never thought I'd be ringing the bell."

Isabella ended the day by having Thai food with her family and, in a follow-up clip, added that she was preparing for her Good Morning America interview with her father, which aired last week.

On GMA, Isabella explained that she first began to experience headaches, vertigo, nausea, and a loss of coordination shortly after starting school at the University of Southern California last fall. After a series of tests, she was diagnosed with a medulloblastoma and underwent emergency surgery to remove it.

"I don't really remember much, I just remember trying to figure out how to get to L.A. ASAP," Michael recalled of the incident. "It just doesn't feel real."

Isabella noted that part of the reason she created her YouTube channel was to show an honest reflection of what it's like to live with cancer as a teenager, and to provide comfort to others who are going through the same thing. She is set to undergo chemotherapy at Duke Children's Hospital & Health Center in North Carolina in February.

"You keep on living, Isabella. You're inspiring us every single day we're around you, and we love you. We're here for you, and you've got this," her dad said. "In 60 or 70 years… you'll be here, baby."

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