A. Marilyn Leitch MD

A. Marilyn Leitch, MD, is Professor of Surgical Oncology and the S.T. Harris Family Distinguished Chair in Breast Surgery, in Honor of A. Marilyn Leitch, MD, at UT Southwestern Simmons Comprehensive Cancer Center.

Dr. Leitch earned her medical degree from UT Southwestern Medical School. She completed her surgery internship at University of California at San Diego, and her surgery residency at University of California Los Angeleas Medical Center. She completed her surgical oncology fellowship at MD Anderson Cancer Center.

Dr. Leitch is a national authority on breast cancer. Her work has included understanding the impact of anti-hormonal therapy or chemotherapy on breast cancer prior to surgery; addressing early detection of breast cancer by the development of guidelines and implementation of enhanced screening; and finding ways to make breast surgery less radical, particularly for patients with more than one tumor in the breast and those with involved lymph nodes. She is committed to understanding and addressing health care disparities that affect cancer diagnosis and treatment.

Dr. Leitch has been included in D Magazine’s Best Doctors list for more than 15 years. She was also named a Texas Monthly Super Doctor in 2021. She serves on the Breast Cancer Steering Committee for the National Cancer Institute (NCI), and is a member of Executive Commmitte and the Board of Directors for the Alliance for Clinical Trials in Oncology, one of the nation’s foremost NCI cooperative groups for cancer research.

Dr. Leitch is a member of the NCCN Breast Cancer Panel.