Skip to main content


Andrew Evans, M.D., Ph.D.Andrew G. Evans, MD, PhD

Associate Professor and Director of Hematopathology, Pathology and Laboratory Medicine
Director, Hematopathology Fellowship
University of Rochester Medical Center

Dr. Evans joined the faculty in 2013 after completing his training in Boston at Brigham and Women’s Hospital, Harvard Medical School, and the Dana Farber Cancer Institute where he served as Chief Resident in Anatomic Pathology and completed his fellowship in Hematopathology. Dr. Evans earned his MD and PhD in Immunology and Molecular Pathogenesis from Emory University’s School of Medicine. Dr. Evans contributes to all aspects of the clinical hematopathology service, and his research interests include the immunology and pathobiology of lymphoproliferative disorders. His current research focuses on the molecular, genetic, and immunologic mechanisms that underlie leukemia and lymphoma development. Specifically, which microenvironmental interactions influence the development and persistence of these diseases.

John Bennett, M.D.John M. Bennett, MD

Professor Emeritus of Medicine, Pathology and Laboratory Medicine
University of Rochester Medical Center

Dr. Bennett is an internationally renowned morphologist who has been instrumental in almost every aspect of marrow morphology. He played a critical role in the development of the FAB system for classification of AML and MDS, and continues as a contributor to the WHO system. In June 2013, Dr. Bennett completed his 20 year’s as an Editor-in-chief of “Leukemia Research”. Dr. Bennett also maintains a very substantial role in clinical conferences, is daily available for consultation, is directly involved in resident/fellow education. He also maintains a large consultation practice, including centralized review for clinical trials, which forms a great resource for fellow education.

Richard Burack, M.D., Ph.D.Richard Burack

Associate Professor and Vice Chair for Clinical Operations, Pathology and Laboratory Medicine
Director of Flow Cytometry Lab, Protein Electrophoresis Lab and the Molecular Genetic Pathology Unit
University of Rochester Medical Center

Dr. Burack initiated this fellowship program in 2007 after arriving from Washington University in St. Louis where he trained and ultimately ran the hematopathology fellowship there. Dr. Burack’s clinical practice is focused on the diagnosis of hematopoietic malignancies. He has a particular interest in the application of molecular methods to diagnosis of lymphoma. He recently became co-investigator on a grant to study the role of immune-senescence in lymphomagenesis, the role of immune microenvironment in determining response to therapy, and the role of immune function in the symptoms of lymphoma via analysis of rare immune cell populations by advanced flow cytometry.

Archibald Perkins, M.D., Ph.D.Archibald Perkins M.D., Ph.D.

Professor of Pathology and Laboratory Medicine
University of Rochester Medical Center

Dr. Perkins joined the faculty in July 2007 having been on the faculty of the Dept. of Pathology of Yale University for 15 years. In addition to signout responsibilities, Dr. Perkins has a substantial research program dedicated to the understanding of EVI1 (3q26) lesions in myeloid malignancies. His clinical responsibilities include interpretation of bone marrow biopsies and smears, lymph node biopsies, and spleen; and laboratory analyses of coagulation disorders and hemoglobinopathies.

Siba El Hussein, M.D.Photo Not Available

Assistant Professor of Pathology and Laboratory Medicine
University of Rochester Medical Center

Dr. El Hussein is the newest faculty member of the hematopathology division who recently joined our department in July 2021. She received her medical degree from Lebanese University; Faculty of Medical Sciences in 2013. She was a resident in anatomic and clinical pathology at Institut National de Pathologie for a year, then completed a four-year residency at Mount Sinai Medical Center of Greater Miami. In 2018, Dr. El Hussein took a fellowship in cytopathology at Montefiore Medical Center of NY and in 2019, finished a two-year fellowship in hematopathology at The University of Texas MD Anderson Cancer Center.