Xiaoyan Liao, MD, PhD, is a Professor of Pathology and Senior Associate Consultant at the Department of Laboratory Medicine and Pathology in Mayo Clinic Arizona. She earned her medical degree from Beijing Medical University and a PhD in Developmental Toxicology from the University of California, Los Angeles (UCLA). She completed residency training in Anatomic and Clinical Pathology at the University of California, San Diego (UCSD) and fellowship training in Gastrointestinal and Liver Pathology at the Icahn School of Medicine at Mount Sinai in New York.

Dr. Liao has authored more than 100 peer-reviewed publications. She served as Editor-in-Chief for the textbook “100 Rare Tumors of the Digestive System: A Case-Based Reference for Surgical Pathologists” (Academic Press, 2025). She is a member of the editorial boards of Laboratory Investigation and PathologyOutlines.com. She has delivered numerous invited presentations on gastrointestinal and liver pathology at national and international conferences and has received multiple distinguished awards. At Mayo Clinic Arizona, she has been appointed the GI block leader for the upcoming residency program and serves on the research committee.