She earned her medical degree from the University of North Carolina, Chapel Hill. She then completed a surgery residency and a postdoctoral research fellowship in breast cancer research at the University of California, San Francisco. Dr. Lang completed her breast surgical oncology fellowship at the M.D. Anderson Cancer Center. She was the Director of Breast Surgical Oncology at the Arizona Cancer Center for 5 years, and then joined the faculty of the USC Norris Comprehensive Cancer Center in 2012. Her laboratory studies molecular profiling of circulating tumor cells in breast cancer, inflammatory breast cancer and radiation induced-sarcoma. Dr. Lang is also involved with clinical trials and translational studies focused on finding better treatments for breast cancer patients via a multidisciplinary and personalized approach.