University of Ulsan College of Medicine
Anatomic Pathology
National Institutes of Health - Anatomic Pathology
University of Ulsan College of Medicine - Anatomic Pathology
University of Ulsan Medical College of Medicine - Anatomic Pathology
Pennsylvania Hospital - Surgical Pathology
Mount Sinai Medical Center - Gastrointestinal Pathology
Clinical / Research Interests
Gastrointestinal pathology
Genitourinary Pathology
Breast pathology
Digital pathology

Sun A Kim, MD, MS, PhD is a gastrointestinal, pancreas and hepatobiliary pathologist. Prior to joining GW, she completed a Gastrointestinal Pathology Fellowship at the Mount Sinai Medical Center in Manhattan, New York, a Surgical Pathology Fellowship at Pennsylvania Hospital, Philadelphia, PA, and Anatomic Pathology Residency at National Institutes of Health (NIH), Bethesda, MD, where she had the honor to hold a position of chief resident. She did a Research Fellowship in the Molecular Pathological Epidemiology Laboratory at the Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA.

Dr. Kim’s clinical practice focus is to provide pathology diagnosis of gastrointestinal tract, hepatobiliary-pancreatic diseases, and genitourinary system diseases. Dr. Kim provides expert pathology diagnostic services for the GW Department of Pathology and its consultation services (

Dr. Kim’s research is centered mainly on pathology and molecular characterization of digestive organ diseases. Dr. Kim participates in collaborative research in her areas of focus. Highlights of her research include:

  • Pathologic characterization and monitoring of pre- and post-treatment inflammatory bowel disease in association with immunotherapy.  
  • Predictive molecular phenotype of colorectal cancers, particularly in relation with patient’s metabolic diseases, microbiome and modifiable lifestyle factors.
  • Predictive markers and novel pathologic findings of pancreatic neoplasm including neuroendocrine tumors and solid pseudopapillary neoplasm.