Brooke Burke Reveals She Has Thyroid Cancer in Video

"DWTS" star takes to YouTube to let fans know she's been diagnosed with the disease.
3:00 | 11/09/12

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Transcript for Brooke Burke Reveals She Has Thyroid Cancer in Video
Now, to the surprising news from brooke burke charvet. The "dancing with the stars" host announced she was battling thyroid cancer. Paula faris has the story. Reporter: She's the bright-eyed bombshell who lights up the ballroom with her megawatt smile. Week after week, delivering this signature phrase. Good luck. Here's your scores. Reporter: Now, "dancing with the stars" co-host brooke burke charvet is revealing a very different kind of result, one she never saw coming. The last few months have been about a whole lot of research and a lot of doctors' appointments for me. I got my results back days later. They were atypical. Reporter: The 41-year-old mother of four posted this video titled, cancer on her modern mom blog thursday. Opening up about her diagnose of thyroid cancer. That means that I'm going to have a nice, big scar right here across my neck. I'm going to be a really good patient. And I'm going to do everything that I need to do. And I booked my surgery. And it's taken me a couple months to wrap my head around this. Reporter: The dancing alum is a portrait of good health. Recently gracing the covers of "shape," and "fitness" magazine. Even releasing a series of FITNESS DVDs. But her disease doesn't discriminate. I feel really good. And actually, I've never felt better. That's what's crazy about this whole thing. And you never, ever, ever think that some tiny little nodule. I didn't know it was going on inside my body. Reporter: Since sharing her story, she has received an outpouring of support from fans and loved ones, even her co-host. Brooke burke confided in tom bergeron some time ago. He's been a strong support for her. Reporter: As she prepares for her upcoming surgery, this busy mom is keeping her spirits high. This is a happily ever after ending kind of thing. Just wanted to tell you. And I'll keep you posted. I'm going to fight through this. Reporter: For "good morning america," paufaris, abc news, new york. Let's get more on this, now, from abc's senior medical contributor, dr. Jennifer ashton. We just saw brooke right there. It's very common. But the good news, very curable. Thyroid cancer is on the rise in this country. Over 50,000 cases diagnosed each year. The majority of them are women. As we say in the medical community, if you have to hear the "c" word, if you have to be told you have cancer, the prognosis for most cases is excellent. To go through the surgery, what will that mean? This is a butterfly-shaped tiny gland in your neck. It tess the hormone producer in your body. Patients have to tyke life long thyroid medication. What are the symptoms or early warning signs you might have thyroid cancer? Most of the time in its early stages, george, there are no symptoms. Most common one is a tiny lump that you and your doctor might feel in your neck. But the key here is, while we don't understand what's causing it, common sense prevention, if you're getting x-rays, ask for the lead neck shield. That's the best you can do. Thank you very much. Thanks, george.

This transcript has been automatically generated and may not be 100% accurate.

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