5 Takeaways From Actress Jenna Fischer’s Breast Cancer Reveal

Jenna Fischer, the actress who played Pam Beesly on The Office, says she was diagnosed with early-stage breast cancer last December and is now cancer-free after completing surgery (a lumpectomy), chemotherapy, and radiation.

“My tumor was so small it could not be felt on a physical exam,” Fischer says in an announcement on Instagram, urging people not to delay their annual mammograms. “If I had waited six months longer, things could have been much worse.”

She says her initial mammogram results were inconclusive due to dense breast tissue, which can make tumors harder to spot. She followed up with a breast ultrasound that found a spot on her left breast, then got a biopsy.

Fischer says she was diagnosed with what’s known as stage 1 breast cancer — when tumors are smallest and easiest to treat — but that she had an aggressive type of tumor known as triple-positive breast cancer.