Michael Strahan with daughter Isabella.Photo:Michael Strahan/Instagram

Michael Strahan/Instagram
Michael Strahanhas been cheering on hisdaughter Isabellain her modeling career, even as the 19-year-old was undergoing treatment after beingdiagnosed with medulloblastoma. Thiscommon malignant tumorarises in the cerebellum, a part of the brain located at the base of the skull.
On Dec. 31, before publicly sharing the news about his daughter’s health, theGood Morning Americaanchor posted a photoon Instagramof Isabella in an ad campaign for Sephora Collection mascara, with two pictures screenshotted from the website and a third taken in-store of her photo on display.
“So proud of my beautiful and amazing daughter,@isabellastrahanon her first big campaign. Proud of you 👏🏾🙌🏾 #GirlDad” Michael, 52, captioned the post.
Isabella was diagnosed with a brain tumor in October after she started experiencing headaches — which she initially attributed to vertigo — during her freshman year at the University of Southern California.
The college student and her dadopened up about her health newsin a segment that aired onGood Morning AmericaThursday. She explained in the interview that she underwent emergency surgery at Cedars-Sinai to remove the mass on Oct. 27, a day before her 19th birthday.
Michael Strahan with daughter Isabella.Michael Strahan/Instagram

“I know she’s going through it, but I know that we’re never given more than we can handle and that she is going to crush this,” Strahan, 52, told his fellow co-anchorRobin Robertson the show.
“I literally think that in a lot of ways, I’m the luckiest man in the world because I’ve got an amazing daughter,” he added.

On Jan. 7, she shared a series of photos to her account modeling a denim outfit. “Denim dump from October with@joecharlesphoto,” she captioned the post.
Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.
As for the future, Isabella said onGMAthat the experience has given her a new outlook. “Perspective is a big thing,” she said. “I’m grateful. I am grateful just to walk or see friends or do something, ‘cause when you can’t do something, it really impacts you.”
Michael echoed her sentiment. “You learn that you’re probably not as strong as you thought you were when you have to really think about the real things, and I realized that I need support from everybody,” he said.
“You think, ‘I’m the athlete, the tough guy, you know, I can come and handle, I’m the father in the family.’ It is not about any of that. It doesn’t matter. And it’s really made me change my perspective on so many things in my life.”
source: people.com