Leukemia Specialists

Leukemia Specialists

Karen Marcus, MD

Chief, Division of Radiation Oncology, Boston Children's Hospital 
Associate Professor of Radiation Oncology, Harvard Medical School 
Dana Farber Cancer Institute 

Dr. Marcus's primary interest is in pediatric malignancies. Although she is chiefly a clinician, her "translational research" is in the role of angiogenesis in specific pediatric tumors such as neuroblastoma. Her clinical work has been in improving treatment in pediatric soft tissue sarcomas and pediatric lymphomas, as well as in the late effects of therapy.


Natia Esiashvili, MD

Associate Professor 
Chief Quality Officer, Department of Radiation Oncology 
Emory University 
Winship Cancer Institute 

Natia Esiashvili, MD, is a board certified radiation oncologist in the Department of Radiation Oncology at Emory University School of Medicine in Atlanta, GA. Dr. Esiashvili practices general radiation oncology and specializes in the treatment of pediatric cancer, brain and spine tumors, sarcoma lymphoma Leukemia, and bone marrow and stem cell transplantation. She treats patients at Winship Cancer Institute of Emory University. Dr. Esiashvili leads the pediatric radiation oncology service at Winship, the only center performing total body irradiation for bone marrow transplantation in Georgia. She specializes in the treatment of complex pediatric cancers and hematological malignancies in adults.

Dr. Esiasvhili's research tracks the clinical outcomes of children treated with modern radiotherapy techniques such as intensity-modulated radiation therapy and frameless radiosurgery. She helped design radiotherapy guidelines for several clinical trials for the Children's Oncology Group. As a member of the Children’s Oncology Group Late Effects Guidelines Task Force, she collaborates with clinical investigators across the country to develop evidence-based screening and follow-up guidelines for survivors of childhood tumors. Dr. Esiashvili received a grant for researching long-term follow-up care in young adult cancer survivors and established the first transitional clinic for survivors of childhood malignancies in Georgia. Dr. Esiashvili serves as a manuscript reviewer for the International Journal of Radiation Oncology and has published several journal articles and book chapters.