 OR Discussion of Procedures by Variant Variant 1: Female. Age 40 years or older. Postsurgical excision with nonmalignant pathology. Asymptomatic. Initial imaging. Benign breast disease can be classified into 3 broad categories: nonproliferative lesions, proliferative lesions without atypia, and proliferative lesions with atypia. Nonproliferative lesions include benign calcifications, fibrocystic changes, fibroadenomas, lipomas, fat necrosis, and nonsclerosing adenosis. Proliferative lesions without atypia include usual ductal hyperplasia, sclerosing adenosis, complex fibroadenomas, radial scars/complex sclerosing lesions, papillomas, and papillomatosis. Proliferative lesions with atypia include atypical ductal hyperplasia, atypical lobular hyperplasia, lobular carcinoma in situ (LCIS), and flat epithelial atypia [4,5]. Benign breast disease and breast tissue density are independent risk factors for developing breast cancer [5,6]. One study of women from the Breast Cancer Surveillance Consortium (BCSC) reported breast cancer in 25% of women with excision for aUMass Memorial Medical Center, Worchester, Massachusetts. bPanel Chair, Alpert Medical School of Brown University, Providence, Rhode Island. cPanel Vice-Chair, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida. dWashington University School of Medicine, Saint Louis, Missouri. eUniversity of Cincinnati, Cincinnati, Ohio. fPenn State Health Hershey Medical Center, Hershey, Pennsylvania. gUniversity of Utah, Salt Lake City, Utah. hKaiser Permanente, Atlanta, Georgia. iMemorial Sloan Kettering Cancer Center, New York, New York. jUniversity of Michigan, Ann Arbor, Michigan. kSt. Bernards Healthcare, Jonesboro, Arkansas. lDuke Signature Care, Durham, North Carolina; American College of Physicians. mPrinceton Community Hospital, Princeton, West Virginia; American College of Surgeons. nProMedica Breast Care, Toledo, Ohio. oEmory University Hospital, Atlanta, Georgia; RADS Committee.
Imaging after Breast Surgery.  OR Discussion of Procedures by Variant Variant 1: Female. Age 40 years or older. Postsurgical excision with nonmalignant pathology. Asymptomatic. Initial imaging. Benign breast disease can be classified into 3 broad categories: nonproliferative lesions, proliferative lesions without atypia, and proliferative lesions with atypia. Nonproliferative lesions include benign calcifications, fibrocystic changes, fibroadenomas, lipomas, fat necrosis, and nonsclerosing adenosis. Proliferative lesions without atypia include usual ductal hyperplasia, sclerosing adenosis, complex fibroadenomas, radial scars/complex sclerosing lesions, papillomas, and papillomatosis. Proliferative lesions with atypia include atypical ductal hyperplasia, atypical lobular hyperplasia, lobular carcinoma in situ (LCIS), and flat epithelial atypia [4,5]. Benign breast disease and breast tissue density are independent risk factors for developing breast cancer [5,6]. One study of women from the Breast Cancer Surveillance Consortium (BCSC) reported breast cancer in 25% of women with excision for aUMass Memorial Medical Center, Worchester, Massachusetts. bPanel Chair, Alpert Medical School of Brown University, Providence, Rhode Island. cPanel Vice-Chair, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida. dWashington University School of Medicine, Saint Louis, Missouri. eUniversity of Cincinnati, Cincinnati, Ohio. fPenn State Health Hershey Medical Center, Hershey, Pennsylvania. gUniversity of Utah, Salt Lake City, Utah. hKaiser Permanente, Atlanta, Georgia. iMemorial Sloan Kettering Cancer Center, New York, New York. jUniversity of Michigan, Ann Arbor, Michigan. kSt. Bernards Healthcare, Jonesboro, Arkansas. lDuke Signature Care, Durham, North Carolina; American College of Physicians. mPrinceton Community Hospital, Princeton, West Virginia; American College of Surgeons. nProMedica Breast Care, Toledo, Ohio. oEmory University Hospital, Atlanta, Georgia; RADS Committee.