Dr. Proytcheva is responsible for the medical leadershiand overall operations of the laboratories at the Banner-University Medical Center B-UMC) Tucson. She serves as hematopathologist at the Division of Hematology at B-UMC Tucson. In her roles, Dr. Proytcheva is actively involved in the training of pathology residents, hematopathology fellows and medical students. Prior to her current position, Dr. Proytcheva was the Medical Director of the Hematology Laboratory at Children’s Memorial Hospital, Chicago, and Associate Professor of Pathology at the Northwestern University, Chicago. She is the editor and main author of Diagnostic Pediatric Hematopathology, published by Cambridge University Press in 2011, to be updated in 2021. Dr. Proytcheva served as Chair of the Scientific Committee on Hematopathology and Clinical Laboratory Hematology of the American Society of Hematology; two terms as elected member of the Board of the International Society of Laboratory Hematology; a Vice-Chair of the International Council for Standardization in Hematology. Dr. Proytcheva is Program Director of People’s Laboratory Medicine Grand Rounds at the Arizona Telemedicine Program.