RT Book, Section A1 Whitworth, Pat W. A1 Lewis, Jaime A2 Kuerer, Henry M. SR Print(0) ID 6414228 T1 Chapter 60. Cryoablation of Fibroadenomas T2 Kuerer's Breast Surgical Oncology YR 2010 FD 2010 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-160178-8 LK accesssurgery.mhmedical.com/content.aspx?aid=6414228 RD 2024/04/20 AB Breast masses occur frequently, as evidenced by more than 1.3 million excisional biopsies performed on American women yearly.1,2 Approximately 80% of these procedures are for benign lesions, most commonly fibroadenomas.1-4 Although it has been repeatedly stated that one-third to one-half of fibroadenomas will regress within 5 years of diagnosis, the data on the natural history of fibroadenomas varies.5-8 Fibroadenomas may occur at any age, but are most likely to occur in the second and third decades of life and are the most common breast masses in women under 30 years of age.2,9-11 Up to 10% of women will develop a fibroadenoma during their lifetime, and the majority will choose to undergo a procedure to remove the mass.2,4 Fibroadenomas account for 30% to 75% of all breast biopsies, more than 500,000 annually, and 75% of breast biopsies in women younger than 20 years.3,9,10