Fox News host Brenda Buttner dead at age 55

Fox News host Brenda Buttner has died at the age of 55.

The "Bulls and Bears" host lost her battle with cancer, the cable network confirmed on Monday.

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Neil Cavuto, host of "Your World," paid tribute to Buttner on his show.

"I have some very sad news to share with you today: Our Brenda Buttner has passed away," he revealed. "Now, many of you know her as the unflappable host of 'Bulls and Bears,' but she was much more. Allow me now to tell you how much more."

Reactions to Brenda Buttner's death:

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Brenda Buttner of Fox News dead at 55
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Brenda Buttner of Fox News dead at 55
Brenda Buttner, host of Fox News Channel's "Bulls and Bears," has passed away at age 55 after a battle with cancer. "Business journalism is never going to be the same. I just don't know, now that she's gone, whether we'll ever be. Brenda Buttner, gone way too soon at 55." – Neil Cavuto
Remembering Fox News Channel's Brenda Buttner https://t.co/MGqzDE2Pa0
Sad news to report... our colleague and my friend Brenda Buttner passed today. She fought cancer heroically. RIP Brenda. We will miss you.
Fox News host Brenda Buttner dead at 55 https://t.co/XSckRxuXCb https://t.co/NbDEcHN0QE
Rest In Peace Brenda Buttner You Will Be Missed @TeamCavuto @FoxBusiness https://t.co/r1hmbLFz4C
Remembering Fox News Channel's Brenda Buttner https://t.co/MGqzDE2Pa0
Fox News host Brenda Buttner has lost her battle with cancer at age 55. https://t.co/IyXhPMzmIB https://t.co/Gr9dWyZbMs
So sad to report passing of #fnc #fbc @brenda buttner. Kind, smart, funny. She died too soon.
* #FOX mourns loss of FRIEND* #BrendaButtner's passing 2DAY* Gave #Cancer huge FIGHT* Radiance~Love~God's LIGHT* Tr… https://t.co/6oIbRbDYxG
Remembering one of the funniest and most talented people on @FoxBusiness #brendabuttner @FoxNews @TeamCavuto… https://t.co/xlkspt7Jh1
RIP Brenda Buttner 1961-2017 @FoxBusiness Gone too soon. She will be sorely missed. Sending love, thoughts and pray… https://t.co/zajtBNeXaM
Thank you, @TeamCavuto, for the beautiful and moving tribute to Brenda Buttner...gone too soon, indeed...💔 https://t.co/Jpwm7UdxMI
RIP Brenda, you made business fun. Condolences to the family. Very touching segment on @brendabuttner well done… https://t.co/yzgHLCB6cj
RIP Brenda Buttner @FoxBusiness https://t.co/UxzkOYONsS
Here's the tail end of @TeamCavuto remembrance of @brendabuttner https://t.co/aS5aOgcA9A
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"She was a Rhodes Scholar, but she'd never mention it," he explained. "Near the top of her Harvard class, but she would never ever say it. [...] All that smarts stuff is in her files, but the more important things filled her heart."

Cavuto went on to explain that Buttner had a passion for motorcycles, animals and her two daughters. At one point, she put her career in journalism on hold to edit a motorcycle magazine.

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Patty Duke (69): Dec. 14, 1946 - March 29, 2016

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Tonita Castro (63): 1953 - May 8, 2016

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Anton Yelchin (27): March 11, 1989 - June 19, 2016

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Bill Cunningham (87): March 13, 1929 - June 25, 2016

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Alan Thicke (69): March 1, 1947 - Dec. 13, 2016

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"No bravado -- just brave," he continued. "Incredibly brave. You never knew what was going on in her life and how much she was going through in her life -- just that, in her sickest moment when she was battling an unrelenting cancer, there was Brenda cheering you on."

"She took stock of life much more than any stock in life. It's what separated her from everyone else in this business. Not just dollars, you see, Brenda had depth," Cavuto said. "Let it be known that Brenda Buttner made us want to watch a business show with heart. Her heart, her spirit. She democratized dollars and just made sense."

Watch Neil Cavuto's full tribute below:

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