About breast cancer

About Breast Cancer

Definition

Breast cancer is a type of cancer that forms in the breast tissue. It starts when breast cells begin growing out of control, and usually turn into tumor(s) that can be seen on imaging examinations. Depending on the tumor size and location, a lump may be felt.
Breast cancer (purple tumors) may have various locations and sizes.

Breast cancer (purple tumors) may have various locations and sizes.

Statistics

Breast cancer is the second most common cancer in the world 1

Most frequent cancer in women:
1.67 million new cases diagnosed in 2012
(25% of all cancers) 1

5th cause of death from cancer overall
(522,000 deaths in 2012) 1

1 GLOBOCAN, Cancer Fact Sheets: Breast cancer, 2012, http://globocan.iarc.fr/old/FactSheets/cancers/breast-new.asp

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