In 2007, nearly 4 years after my advanced stage 3C breast cancer diagnosis with metastases to 13 lymph nodes, I was stunned as I listened to an interview with Dr. Paul Goss who emphatically reported that ER+ breast cancer is a chronic relapsing disease that can stay dormant for years, tragically to return with metastases to bone and/or liver and/or lung. I just completed a 3-year treatment of an aromatase inhibitor for my estrogen-fueled breast cancer, which was missed and delayed by mammogram because of my dense breast tissue. Prior to hearing his compelling data about my breast cancer and its risk of recurrence well passed the 5-year milestone of a survivor’s obligatory celebration, the plan was to end my treatment after 5 years to correspond with the current standard of practice. Dr. Goss called the lack of communicating the persistent later recurrence of ER+ disease the ‘greatest’ disservice to breast cancer patients. The stage-at-diagnosis 5-year charts, with its mortality projections that survivors seek out at the time of their diagnoses, are misleading and only tell half the story of the chronicity of this troublesome receptor.
What shook me to my core was his comment that 2/3 of all recurrences of node positive & hormone receptor positive disease metastasizes no matter how long from the original diagnosis. I knew I was heading to the grave quicker if I ceased my treatment.
I shared his interview with my health care team which included my breast surgeon, oncologist, primary care doctor and radiation oncologist and communicated my desire, despite the side effects of the medication, to continue post 5 years, unless the science in two years informs us otherwise. While understanding my concern and plea for continued protection because of my late stage diagnosis, they were hesitant to support my preference past 5 years because of the current standard of care.
At the 5-year mark of my treatment at the end of 2009, I again lectured my health care providers on the MA. 17 trial data on extended adjuvant therapy to reduce the recurrence of breast cancer in addition to suppressing a new occurrence of breast cancer. I was convinced that continuing my therapy was the best insurance policy I had to prevent the other shoe from dropping - a metastatic recurrence. After all, I experienced the tragic result of my lockstep adherence to my doctors’ advice for yearly mammography screenings for protection from an advanced cancer, despite the decades of research reporting the limitations of mammography screening to detect cancer in the dense breast. I am convinced that my screening nearly killed me (and still could) but this small white pill, the aromatase inhibitor, is keeping me alive. My health care providers’ unwillingness to fully concur with me about the chronicity of my disease was evident, although there was no denying my great risk of recurrence, given my late-stage breast cancer at diagnosis. Because of my persistence, we all agreed to an extended endocrine therapy for me.
A study on the 20-year risks of recurrence in women with ER+ breast cancer who were disease free after five years of endocrine therapy was published this week with similar conclusions from my first encounter with this data in 2007. These results confirm that my determined desire to continue my therapy post 5 years, which is now embraced by my health care providers into my 13th year, was the right decision for me. Throughout the study period, breast cancer recurrences occurred at a steady rate from 5 to 20 years. The absolute risk of recurrence and death increased with larger cancers and greater nodal status. The study found that patients with T2 disease (tumors greater than 2 cm) and between four to 9 cancerous nodes that ceased therapy after 5 years had a 41% risk of recurrence.
Just like exposing the secret of dense breast tissue to patients participating in mammography screening, it is time to expose the secret of this chronic relapsing disease to give women all the options they may need to survive the second leading cause of cancer death in women.
Dr. Paul Goss talks about the risk of breast cancer recurrence in ER+ disease
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Breast density is one of the strongest predictors of the failure of mammography screening to detect cancer.
Two-thirds of pre-menopausal women and 1/4 of post menopausal women have dense breast tissue.
Adding more sensitive tests to mammography significantly increase detection of invasive cancers that are small and node negative.
American College of Radiology describes women with "Dense Breast Tissue" as having a higher than average risk of Breast Cancer.
While a mammogram detects 98% of cancers in women with fatty breasts, it finds only 48% in women with the densest breasts.
A woman at average risk and a woman at high risk have an EQUAL chance of having their cancer masked by mammogram.
Women with dense breasts who had breast cancer have a four times higher risk of recurrence than women with less-dense breasts.
A substantial proportion of Breast Cancer can be attributed to high breast density alone.
Cancer turns up five times more often in women with extremely dense breasts than those with the most fatty tissue.
There are too many women who are unaware of their breast density, believe their “Happy Gram” when it reports no significant findings and are at risk of receiving a later stage cancer diagnosis.