Dr. Bloomfield earned her B.A. from the San Diego State College, San Diego, California in 1963 and her M.D. from the University of Chicago in 1968. She completed a residency in internal medicine at the University of Chicago and a fellowship in medical oncology at the University of Minnesota.Dr. Bloomfield was the first woman to reach the rank of a full professor of medicine at the University of Minnesota in 1980. In 1989, she became professor of medicine and chief of the Division of Oncology at the State University of New York at Buffalo. At the same time, she was chair of the Division of Medicine at Roswell Park Cancer Institute. In 1997, she moved to Columbus, Ohio, where she became director of the Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC-James). She held this position until 2003. Currently, Dr. Bloomfield is a distinguished university professor and senior adviser at the OSUCCC-James. She is also a member of the Molecular Biology and Cancer Genetics Program, a professor of internal medicine, and she holds the William Greenville Pace III Endowed Chair in Cancer Research.Early in her career, Dr. Bloomfield focused on the study of chromosome abnormalities in cancers of the hematopoietic system (leukemias and lymphomas). She and her co-workers identified several novel chromosome changes in leukemia and lymphoma, and discovered that these abnormalities are among the most important factors that determine a patient's prognosis. For example, Dr Bloomfield was involved in the discovery of the Philadelphia chromosome in patients with acute lymphoblastic leukemia (ALL). She was also involved in describing the rearrangement of chromosome 16q22 in acute myeloid leukemia. More recently, her work has focused on molecular changes (gene mutations and deregulated expression of genes and microRNAs) that occur in adults with acute myeloid leukemia. Dr. Bloomfield has published more than 400 publications in peer-reviewed scientific journals. Dr. Bloomfield is a co-author of the World Health Organization (WHO) Classification of Tumours of Haematopoietic and Lymphoid Tissues, and the European LeukemiaNet (ELN) guidelines on diagnosis and management of acute myeloid leukemia.