Breast Cancer Facts

New Clients: $50 off Women’s Breast and Lymph Screenings
(Discount applied at time of payment)

(The following information comes directly from the American Cancer Society
and the Metastatic Breast Cancer Network.)

All cancers involve the malfunction of genes that control cell growth and division. About 5% of all cancers are strongly hereditary. However, most cancers result from damage to genes occurring during one’s lifetime.

Three major causes of breast cancer are

  1. Excessive estrogen (also known as estrogen dominance),
  2. Inflammation of the breast tissue, and
  3. Lymph congestion,

each of which is detectable through thermal imaging.

2013 Estimates

Estimated New Cases of Breast Cancer in 2013

  • Total: 234,580
  • Male: 2,240
  • Female: 232,340

Estimated Deaths from Breast Cancer in 2013

  • Total: 40,030
  • Male: 410
  • Female: 39,620

http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-036845.pdf

Estimated Cancer Deaths by Age in 2013

  • Younger than 45: 2,460
  • 45 and older: 37,160
  • Younger than 65: 16,770
  • 65 and older: 22,850

http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-037115.pdf

Lifetime Probability of Developing and Dying from Cancer

  • 12.38% chance of developing (1 in 8 women)

http://www.cancer.org/acs/groups/content/@epidemiologysurveilance/documents/document/acspc-037116.pdf

Breast Cancer Onset and Diagnosis

The Metastatic Breast Cancer Network provides the following information about the age of breast cancer diagnosis by age group. (See http://mbcn.org/education/category/who-gets-breast-cancer/.)

Percent of Cases Diagnosed, by Age Group

Percent of Cases Diagnosed, by Age Group

Given that mammograms are the most common technique for diagnosing breast cancer, and that breast cancer may grow 6 to 8 years before it can be detected, the age of onset of breast cancer may be 6 to 8 years earlier than diagnosed, thus producing the graph on the left below. (The age ranges use a conservative value of 6 years prior to diagnosis.)

When the age of onset is compared to the age at which mammograms are now recommended by the American Cancer Society (age 50), the percentage of cancer cases that begin prior to mammograms is approximately 34%, as seen in the graph on the right below. 

Onset of breast cancer, by age range

Onset of breast cancer, by age range

BCbyMam

Percent of breast cancer cases that begin before and after mammograms screenings

 

Risk Factors for Breast Cancer

  • Gender: Women at about 100 times more likely to get breast cancer than men.
  • Age: 1 in 8 are in women under 45; 2 of 3 cases are in women 55 years or older.
  • Genetics: 5% – 10% increase in risk from hereditary factors (The risk may be as high as 80% for members of some families with BRCA mutations. These cancers tend to occur in younger women [note: dense breast tissue] and more often affect both breasts than cancers in women who are not born with one of these gene mutations.)
  • Family and personal history of breast cancer
  • Ethincity: White women more likely to have breast cancer than women of other ethnicities, but in women under 45 years of age, breast cancer is more common in African- American women
  • Early start to menstrual periods or late menopause (after 55)
  • No children or first child after 30 [hence, more menstrual periods]
  • Previous chest radiation [Note: because radiation increases cancer risk]
  • Current or recent use of birth control pills
  • Current or recent use of Menopausal Hormone Therapy (Combined Hormone Therapy) after menopause
  • Proliferative lesions without atypia: Increases risk 1.5 – 2 times
  • Proliferative lesions with atypia: Increases risk 3.5 – 5 times
  • Lobular carcinoma in situ: Increases risk 7 – 11 times
  • Alcohol: 2 – 5 drinks daily increases risk 1.5 time
  • Obesity / overweight after menopause [raises estrogen, increases insulin levels]
  • Lack of physical activity

http://www.cancer.org/cancer/breastcancer/detailedguide/breast-cancer-risk-factors

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