Holli M. Drendel, PhD, FACMGG, is the director of the molecular pathology laboratory at Atrium Health, core laboratory in Charlotte, North Carolina. Before joining Atrium and Carolinas Pathology Group, she earned her PhD in medicinal chemistry and molecular pharmacology at Purdue University and completed fellowships in both molecular genetics and cytogenetics in the department of medical and molecular genetics at Indiana University School of Medicine. Holli is board certified in both clinical cytogenetics and clinical molecular genetics by the American Board of Genetics and Genomics (ABGG). Following her fellowship, she moved to Fullerton Genetics at Mission Health in Asheville, North Carolina, where she directed the cytogenetics laboratory and expanded the test menu for both the molecular genetics and cytogenetics laboratories. Holli then moved to the Medical College of Wisconsin and codirected the Wisconsin Diagnostics cytogenetics laboratory. She is a member of several professional societies and her professional interests cover cytogenetics, FISH, molecular genetics, molecular oncology, and pharmacogenetics, among others.