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The Voice of People With Breast Cancer


Our Voices Blog

The importance of knowing you have dense breasts

By Tannis Wock

I went for my regularly scheduled mammogram in April 2014. The notice I received for my mammogram stated that I was to be screened annually because I had 'dense breast tissue’. This was the first time I had heard that term. When I went for my mammogram in Regina, I told the tech that my letter stated that I had 'dense breast tissue’. After the mammogram, she looked at the images and said yes, “dense breasts.” I had no idea what this meant for me, but I was to find out soon.

I received a letter from the screening centre stating that my mammogram results were normal, with no mention of my breast density. I had my annual physical and my GP noted that my mammogram results were normal and said there was no need for a breast exam. Again, no mention of breast density.

Fast forward two months later to June 2014 when I found a lump while showering. I made an appointment to see a different GP, as mine had moved to a different city.  The GP felt the lump and didn't seem overly concerned, as I had just had a normal mammogram, but she did refer me for further testing. Because of the normal mammogram results, I procrastinated in getting the next level of testing. I had an ultrasound completed near the end of July. After a call from the doctor's office, I was sent for a biopsy and on Aug 4,2014, it was confirmed I had Invasive Ductal Carcinoma, Grade 3.

What a punch to the gut.

In reviewing my test results from my mammogram and ultrasound, the biopsy was only completed because the radiologist could feel the lump, but it wasn’t visible on the mammogram or ultrasound. I had my mastectomy on Sept 9, 2014 and my pathology showed a 3 cm lump, as well as 2 positive lymph nodes with extra capsular extension. I was staged at 2B, ER + PR+ and Her 2 -. My oncologist recommended chemotherapy and radiation, and the aromatase inhibitor Letrozole. This was no doubt one of the toughest years of my life and I am grateful for the excellent care I received from the Allen Blair Cancer Centre in Regina.

My biggest concern is for the other women out there with dense breast tissue that are unaware of the dangers associated with dense breasts. In sharing my story, hopefully this message can be sent: be an advocate for your own health, do monthly self-exams, and after your mammogram ask if you have dense breast tissue. Don't be afraid to ask questions and educate yourself. Mammograms are a great tool for some, but for those of us who have extremely dense breast tissue, they are not enough. I am now screened annually by MRI. So far, I am one of the lucky ones. My life is back to normal and I am hoping that breast cancer is in my rear-view mirror!

To learn more about breast density and why it matters visit Dense Breasts Canada

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  • Jul 28, 2017, 12:00 AM

    Roughly 40% of Canadian women, meaning about 3 million women, have what is known as “dense breasts.” Dense breasts are normal and common, but they also pose cancer risks and screening challenges. Breast density can have a significant impact on cancer detection and the treatment and prognosis of a diagnosed cancer. Many women in Canada are unaware of their breast density, impacting their screening and their ability to be their own breast health advocate. Why is knowing and understanding your breast density so important?

The views and experiences expressed through personal stories on Our Voices Blog are those of the authors and their lived experiences. They do not necessarily reflect the position of the Canadian Breast Cancer Network. The information provided has not been medically reviewed and is not intended to be a substitute for professional medical advice. Always seek the guidance of your healthcare team when considering your treatment plans and goals.