Triple-positive breast cancer occurs when breast cancer cells use estrogen receptors, progesterone receptors, and HER2 protein to grow, according to MD Anderson Cancer Center. It's a subtype of HER2 ...
Jenna Fischer looks at life differently after going through treatment for Stage 1 triple-positive breast cancer. In an emotional sit-down on 'Today' that aired on Monday, Oct. 21, the actress — known ...