Of all breast tissue samples taken,<unk> s comprise about 50%, and this rate rises to 75% for tissue sample in women under the age of 20 years.<unk> s are more frequent among women in higher socioeconomic classes and darker-skinned people. Body mass index and the number of full-term pregnancies were found to have a negative correlation with the risk of<unk> s. There are no known genetic<unk> ctors that influence the rate of<unk> s. The rate of occurrence of<unk> s in women have been reported in literature to range from 7% to 13%.
Fibroadenoma
Phyllodes tumor
Intraductal papilloma
Ductal carcinoma in situ
Carcinoma ex pleomorphic adenoma
Invasive lobular carcinoma
Atypical ductal hyperplasia
Lobular carcinoma in situ