CARCINOMA of the breast has been the subject of intensive clinical research and philosophical interest for nearly a century. It is the most common primary cancer in women, comprising 22% of all their malignancies, developing in an estimated 6% of women during their lifetime. Approximately 20% of the total mortality from cancer in women is due to cancer of the breast. During 1964, in the United States, there were more than an estimated 141,000 women livng with breast carcinoma, 64,000 new cases developed, and 26,000 women died from this disease.1 In other words, one woman in 18 will develop carcinoma of the breast and she stands only a 50% chance of surviving her disease for another five years. Even in succeeding years, her mortality continues to be higher than among other women and her death, in a large proportion of cases, will be ultimately caused by the progression
Muir RW, White JW. Carcinoma of the Breast. Arch Surg. 1967;95(2):170–174. doi:10.1001/archsurg.1967.01330140008002
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