

Surgical Oncology
The Helen O. Dickens Presidential Associate Professor of Surgery at the University of Pennsylvania; Chief of Breast Surgery and Surgical Director of the Rena Rowan Breast Center, Penn Medicine, USA
Dr. Fayanju is the inaugural Helen O. Dickens Presidential Associate Professor in the Perelman School of Medicine at the University of Pennsylvania and the Chief of Breast Surgery for the University of Pennsylvania Health System. She is also Surgical Director of the Rena Rowan Breast Center in the Abramson Cancer Center, an Innovation Faculty member at the Penn Center for Cancer Care Innovation (PC3I), and a senior fellow of the Leonard Davis Institute for Health Economics (LDI) at the University of Pennsylvania. She is an academic breast surgical oncologist whose research focuses on redressing health disparities; improving prognostication and management of aggressive breast cancer variants; generating value in oncology, particularly through the collection and application of patient-reported outcomes (PROs); and promoting diversity and inclusion in healthcare and research. She received her undergraduate degree in History and Science and an MA in Comparative Literature from Harvard. She received her MD and a master’s of population health sciences (MPHS) from Washington University in St. Louis, where she also completed her residency in General Surgery. She completed fellowship training in Breast Surgical Oncology at The University of Texas MD Anderson Cancer Center. In 2019, she was recognized by the National Academy of Medicine as an Emerging Leader in Health and Medicine Scholar. Her research is supported by funding from the National Institutes of Health (NIH), and she has published in a variety of journals including Annals of Surgery, Cancer, and JAMA.
Selected publications from PubMed
Patient Out-of-Pocket Costs and Healthcare Utilization Related to Mastectomy vs Breast Conservation: A Claims-Based Study.
Proussaloglou EM, Ren Y, Fayanju OM, Blitzblau RC, Berger ER, Valero M, Shelley Hwang E, Wheeler SB, Greenup RA
J Surg Oncol. 2026 Aug;134(2):185-196 doi: 10.1002/jso.70281.
Survival outcomes of axillary de-escalation following neoadjuvant chemo-immunotherapy in clinically node-positive triple-negative breast cancer: a national cancer database study.
Li Z, Qu Z, Pei S, Xian K, Zhang H, Yang X, Zhang L, Zhang JQ, Fayanju OM, Wang J, Fang Y
Front Immunol. 2026;17:1892648 doi: 10.3389/fimmu.2026.1892648.
Implementing Value-Based Health Care in Surgical Oncology: A Pathway to Improved Outcomes and Efficiency.
Sabet CJ, Jain B, Fayanju OM
JCO Oncol Pract. 2025 Dec;21(12):1730-1733 doi: 10.1200/OP-25-00125.
Annals of Surgical Oncology Landmark Series Disparities in Surgical Oncology: Breast Cancer.
De Jesus EM, Elmore LC, Fayanju OM
Ann Surg Oncol. 2025 Nov;32(12):8621-8627 doi: 10.1245/s10434-025-18157-0.
Society of Surgical Oncology Breast Disease Site Working Group Statement on Bilateral Risk-Reducing Mastectomy: Indications, Outcomes, and Risks.
Singh P, Agnese DM, Amin M, Barrio AV, van den Bruele AB, Burke EE, Danforth DN Jr, Dirbas FM, Eladoumikdachi F, Fayanju OM, Kantor O, Kumar S, Lee MC, Matsen C, Nguyen TT, Ozmen T, Park KU, Plichta JK, Reyna C, Showalter SL, Styblo T, Tranakas N, Weiss A, Woodfin A, Laronga C, Boughey JC
Ann Surg Oncol. 2025 Feb;32(2):899-911 doi: 10.1245/s10434-024-16484-2.
Help your network discover Dr. Oluwadamilola Fayanju's clinical expertise.