I need to have a thyroidectomy, which means that I’m going to have a nice big scar right here across my neck,” the 41-year-old “Dancing With the Stars” co-host said in a video.Burke-Charvet said the tiny nodule on her thyroid, a butterfly-shaped gland at the front of her neck, was spotted during a routine physical. An initial biopsy was inconclusive, but follow-up tests revealed the lump was cancerous.