Day 4 Program

Poster Spotlight 12: Contemporary Locoregional Challenges: Time to De-escalate?

Day 4: December 12, 2025

7:00 AM–8:30 AM CST

221 ABC

Session Details

The text of the abstracts will be posted on Monday, November 24.

Moderator

Shelly Hwang, Duke University, Durham, NC

PD12-01

Surgical management of young BRCA1/2 carriers with early onset breast cancer

Stephanie M Wong, McGill University and JGH Stroll Cancer Prevention Centre, Montreal, QC, Canada

PD12-02

Eligibility for CDK4/6 inhibitor treatment in 861 patients with invasive lobular carcinoma of the breast: the importance of nodal staging for adjuvant therapy decisions

Natalie S Kim, Georgetown University School of Medicine, Washington D.C., DC

PD12-03

Omission of sentinel lymph node biopsy in early stage HR-positive HER2-negative breast cancer: impact on adjuvant CDK4/6 inhibitor candidacy and oncological outcomes

Martin Heidinger, University Hospital Basel, Basel, Switzerland

PD12-05

Sentinel Lymph Node Biopsy and Clinical Outcome of Patients with Node-Positive Breast Cancer in the RxPONDER Trial (S1007)

Rosa F Hwang, UT-MD Anderson Cancer Center, Houston, TX

PD12-06

Axillary nodal upstaging in T1N0 invasive lobular carcinoma: evaluating applicability of SOUND trial results

Thomas Amburn, Memorial Sloan Kettering Cancer Center, New York, NY

PD12-08

Evaluation of radiation exposure to the humeral head and its correlation with patient-reported outcomes in patients undergoing radiotherapy for early breast cancer

Ivica Ratosa, Institute of Oncology Ljubljana, Ljubljana, Slovenia

PD12-09

Radiotherapy patterns of care in patients with nodal micrometastases: a secondary subgroup analysis of SWOG 1007

Jose G Bazan, City of Hope Comprehensive Cancer Center, Duarte, CA

PD12-10

Impact of Breast Irradiation on Long-Term Risk of Cardiac Events Following Breast-Conserving Surgery for DCIS: A Population-Based Analysis

Eileen Rakovitch, Sunnybrook Health Sciences Centre and University of Toronto, Toronto, ON, Canada

PD12-11

Preliminary Findings of Repeat Breast Conserving Surgery Followed by Daily Partial Irradiation for Participants with Ipsilateral Breast Tumor Recurrences or new Ipsilateral Primary Breast Cancer, Treated Previously with Breast Conserving Surgery and with Whole Breast Radiation Therapy

Courtney Pisano, Case Western Reserve University/University Hospitals Cleveland Medical Center, Cleveland, OH

PD12-12

Discussant: Radiotherapy

Mylin A Torres, Emory University, Atlanta, GA

Discussant: Surgical Considerations

Ko Un Park, Dana-Farber Cancer Institute/ Brigham and Women's Hospital, Boston, MA