Dr. Aysegul Sahin is an internationally recognized breast pathology expert who is a faculty member at M. D. Anderson Cancer Center since 1988. She received her medical doctor degree from University of Ankara in 1980, completed Anatomic and Clinical Pathology Residency at Oregon Health Science University, and did Surgical and Oncologic Surgical Pathology Fellowships at the University of Iowa Hospital and Clinics and the UT M. D. Anderson Cancer Center. Currently, she is the Section Head of Breast Pathology and Director of Surgical Pathology and Breast Pathology Fellowship Programs. She is also the Director of the Breast Tumor Bank. Dr. Sahin is actively involved with clinical and translation research programs related to breast cancer. She has published over 200 peer-reviewed manuscripts on breast pathology especially on morphologic features of invasive and in-situ carcinomas, and high-risk lesions biomarkers of breast cancer progression, prognostic and predictive marker evaluations in breast cancer. Dr. Sahin has also published multiple book chapters on pathology of breast lesions. She is the primary investigator of pathology core of M. D. Anderson Cancer Center SPORE grant on breast cancer. Dr. Sahin is also lead pathologist of many research projects. She is an executive committee member of International Society of Breast Pathology and member of national and international pathology societies.