Samantha Harris, a seven-season co-host of ABC's "Dancing with the Stars," has revealed that her breast cancer battle is not yet over. 

The 40-year-old underwent a double mastectomy late last month after doctors confirmed a cancerous growth in one of her breasts. Pursuing the radical surgery turned out to be the right choice, as doctors discovered that the cancer had begun to spread. 

"When I came to in recovery, my surgeon was standing over me with a look of sadness and told me that he had to take out all of my lymph nodes," Harris told People. "A few days later I got some good news. Thankfully, only one node was positive. Unfortunately, that usually means chemo."

Harris's fight is very similar to what "Good Morning America" correspondent Amy Robach endured last fall

"While in surgery last week my surgeon found a second, undetected malignant tumor," she shared in a blog post. "No MRI, no mammogram, no sonogram had found it … it was only through the mastectomy that she discovered it. My cancer had spread to my sentinel lymph node, but not beyond."

Robach followed up the surgery with eight rounds of chemotherapy, declaring herself a breast cancer survivor after the final round in April

As for Harris, she's weighing her options and staying positive. 

"I am scared by the prospect of chemo, but I know so many inspiring women who have gone through it and, as they told me, 'rocked it,' " she says. "If I need it, I will take a deep breath and readjust my focus ... Stay positive. When life deals you lemons, you gotta make lemonade!" 

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