Rana S. Hoda, M.D., is Professor of Pathology and Director of Cytopathology, Medical University of South Carolina and Attending Pathologist at Hospital of Medical Medical University of South Carolina, Charleston, South Carolina.Christopher VandenBussche, M.D., Ph.D. Assistant Professor of Pathology & Associate Director, Cytopathology DivisionThe Johns Hopkins Hospital, 600 N. Wolfe Street, Sheikh Zayed Tower, BaltimoreSyed A. Hoda, M.D., is Professor of Clinical Pathology,Weill Medical College of Cornell University and Attending Pathologist at New York - Weill Cornell Medical Center, New York, New York.