Scientific Session Awards Abstracts presented at the Society’s annual meeting will be considered for the following awards: • The George Peters Award recognizes the best presentation by a breast fellow. In addition to a plaque, the winner receives $1,000. The winner is selected by the Society’s Publications Committee. The award was established in 2004 by the Society to honor Dr. George N. Peters, who was instrumental in bringing together the Susan G. Komen Breast Cancer Foundation, The American Society of Breast Surgeons, the American Society of Breast Disease, and the Society of Surgical Oncology to develop educational objectives for breast fellowships. The educational objectives were first used to award Komen Interdisciplinary Breast Fellowships. Subsequently the curriculum was used for the breast fellowship credentialing process that has led to the development of a nationwide matching program for breast fellowships. • The Scientific Presentation Award recognizes an outstanding presentation by a resident, fellow, or trainee. The winner of this award is also determined by the Publications Committee. In addition to a plaque, the winner receives $500. • All presenters are eligible for the Scientific Impact Award. The recipient of the award, selected by audience vote, is honored with a plaque. All awards are supported by The American Society of Breast Surgeons Foundation. The American Society of Breast Surgeons 2 2017 Official Proceedings Publications Committee Chair Judy C. Boughey, MD Members Charles Balch, MD Sarah Blair, MD Katherina Zabicki Calvillo, MD Suzanne Brooks Coopey, MD Emilia Diego, MD Jill Dietz, MD Mahmoud El-Tamer, MD Mehra Golshan, MD E. Shelley Hwang, MD Susan Kesmodel, MD Brigid Killelea, MD Michael Koretz, MD Henry Kuerer, MD, PhD Swati A. Kulkarni, MD Holly Mason, MD Elizabeth A. Mittendorf, MD, PhD Tracy-Ann Moo, MD Roshni Rao, MD Miraj Shah-Khan, MD Elizabeth Shaughnessy, MD Jennifer Steiman, MD Stephanie Valente, DO Richard White, MD Jan H. Wong, MD Katharine A. Yao, MD The American Society of Breast Surgeons 3 2017 Official Proceedings This supplement was not sponsored by outside commercial interests. It was funded entirely by the publisher. The American Society of Breast Surgeons 4 2017 Official Proceedings Table of Contents Scientific Oral Presentations I ...................................................................................................... 20 257342 - The influence of breast density on preoperative MRI findings and outcome in patients with a known diagnosis of breast cancer ................................................................. 20 254421 - Contralateral breast cancer (CBC) risk in women with ductal carcinoma in situ (DCIS): Is it high enough to justify bilateral mastectomy? .................................................. 21 254910 - A validated nomogram to predict upstaging of ductal carcinoma in situ to invasive disease ................................................................................................................................... 22 253118 - Cost and complication burden of oncoplastic breast conservation compared to other treatment options in women with breast cancer .......................................................... 24 257382 - Oncogenic microRNA expression in earlier-stage breast cancer may confer survival advantage ................................................................................................................ 25 Scientific Oral Presentations II ..................................................................................................... 27 257057 - Factors influencing management and outcome in patients with occult breast cancer with axillary lymph node involvement: Analysis of the National Cancer Database ............ 27 257239 - The use of sentinel lymph node dissection after neoadjuvant chemotherapy in clinically node-positive patients: Practice patterns of members of the American Society of Breast Surgeons .................................................................................................................... 28 256627 - Model for predicting nodal positivity in women age ≥ 70 with hormone receptor positive cancer to aid incorporation of a recently released Society of Surgical Oncology Choosing Wisely guideline into clinical practice ................................................................. 29 256621 - Radioactive seed localization versus wire localization for breast-conserving surgery: Which is more costly?............................................................................................. 31 252257 - A single institution retrospective study of once daily external beam fractionation accelerated partial breast irradiation compared to whole-breast irradiation in evaluation of local recurrence and toxicity symptoms with minimum five-year follow-up ....................... 32 Quickshot Presentations ................................................................................................................ 33 257384 - Association of annual mammography screening with healthcare costs following breast cancer diagnosis ......................................................................................................... 33 257126 - A ten-year experience with mastectomy and tissue expander placement to facilitate subsequent radiation and reconstruction ................................................................ 34 256902 - Contralateral prophylactic mastectomy with reconstruction increases health care utilization and cost ................................................................................................................ 35 257374 - Minimally-invasive, sutureless, image-guided, definitive lumpectomy and excisional biopsy in an outpatient setting ............................................................................. 37 257264 - A patient-specific 3-D printed form accurately transfers supine MRI-derived tumor localization information to guide breast-conserving surgery ..................................... 38 257052 – Breast cancer-related lymphedema risk is related to multidisciplinary treatment and not surgery alone – Results from a large cohort study ................................................... 39 The American Society of Breast Surgeons 5 2017 Official Proceedings 257074 - Improved locoregional control in a contemporary cohort of nonmetastatic inflammatory breast cancer patients undergoing surgery ..................................................... 41 257285 - Management of benign phyllodes tumors of the breast: Is wide local excision still indicated? .............................................................................................................................. 41 Top 10 Posters............................................................................................................................... 43 254928- Excision alone for low risk ductal carcinoma in situ using University of Southern California/Van Nuys Prognostic Index ................................................................................. 43 257059 - Factors influencing use of hormone therapy for ductal carcinoma in situ: A National Cancer Database study ........................................................................................... 44 257375- Surgical resection of the primary tumor in women with stage IV breast cancer: Contemporary practice patterns and survival analysis.......................................................... 46 256763 - Positive ultrasound-guided lymph node needle biopsy in breast cancer may not mandate axillary lymph node dissection ............................................................................... 46 257322 - Implementation of findings of ACOSOG Z1071 into clinical practice for breast cancer patients (T0-4, N1-2) undergoing neoadjuvant chemotherapy.................................. 48 256737 - High Ki-67 is associated with an increased likelihood of a pathologic complete response in patients with estrogen receptor positive breast cancer....................................... 50 257146 - Validation of a NSQIP-based prediction model for surgical site infections after breast reconstruction ............................................................................................................. 52 256558 - Impact of compromised pulmonary function on 30-day outcomes after breast cancer resection ..................................................................................................................... 53 257188 - Intraoperative radiation therapy: A treatment option for patients with invasive cancers................................................................................................................................... 54 256282 - Who should be offered contralateral prophylactic mastectomy? A Canadian consensus statement using Delphi methodology .................................................................. 55 Poster Session and Reception I ..................................................................................................... 58 Benign ....................................................................................................................................... 58 255300 - Quality of life is adversely affected by the diagnosis of proliferative breast lesions ............................................................................................................................................... 58 257379 - Evaluating the incidence of upgrade to malignancy following