Oudsema Rebecca, Simpson William, Szabo Janet, Margolies Laurie R
Mount Sinai Hospital, Department of Radiology, Box 1234, One Gustave L Levy Place, New York, NY 10029, USA.
Clin Imaging. 2017 Sep-Oct;45:34-36. doi: 10.1016/j.clinimag.2017.05.012. Epub 2017 May 24.
Ectopic or accessory breasts describe residual breast tissue that fails to regress during normal embryologic development anywhere outside the expected locations. Ectopic breast tissue is seen in 2-6% of the population and is categorized into two types: supernumerary and aberrant breast tissue . The extent of development of this accessory tissue varies from rudimentary to complete with organized glandular and ductal development. Given this, it is possible for the same pathology that affects normally positioned breast tissue to also affect accessory breast tissue.
异位乳房或副乳是指在正常胚胎发育过程中未能在预期位置以外的任何地方退化的残余乳腺组织。异位乳腺组织在2%至6%的人群中可见，可分为两种类型：多乳症和异常乳腺组织。这种副乳腺组织的发育程度从基本的到完全的，伴有有组织的腺体和导管发育。鉴于此，影响正常位置乳腺组织的相同病理情况也可能影响副乳组织。
