Ryan M. Gill, MD, PhD
UCSF
Pathology, Box 0102
505 Parnassus Avenue, Room M-590
San Francisco, CA 94143
United States
Dr. Ryan Gill is a Professor of Pathology at UCSF and Director of Anatomic Pathology Laboratories at the Helen Diller Medical Center. A recognized international expert in liver pathology, Dr. Gill specializes in adult and pediatric liver disease, liver transplantation, and liver tumors. His research focuses on MASLD/MASH and liver neoplasia, and he has authored over 140 publications, including contributions to Robbins & Cotran Pathologic Basis of Disease and Mills and Sternberg’s Diagnostic Surgical Pathology. He is an editor of Elsevier’s Surgical Pathology: A Case-Based Approach series and Gastrointestinal Pathology and Liver Metastases. Dr. Gill earned his MD and PhD from the University of Kansas, followed by residency and fellowships in hematopathology and GI/liver pathology at UCSF. He is a lifetime member of the International Liver Pathology Study Group (The ELVES) and provides expert hepatopathology consultations worldwide.
- Gill RM, Buelow B, Mather C, Joseph NM, Alves, V, Brunt EM, Liu T, Makhlouf H, Marginean C, Nalbantoglu I, Sempoux C, Snover DC, Thung SN, Yeh MM, Ferrell LD. Hepatic Small Vessel Neoplasm, a Rare Infiltrative Vascular Neoplasm of Uncertain Malignant Potential. Human Pathology. 2016, 10.1016/j.humpath.2016.03.018.
- Tsai JH, Ferrell LD, Tan V, Yeh MM, Sarkar M, Gill RM. Aggressive non-alcoholic steatohepatitis following rapid weight loss and/or malnutrition. Modern Pathol. 2017, Mar 3. PMID 28256569.
- Roberts DE, Kakar S, Mehta N, Gill RM. A Point-based Histologic Scoring System for Hepatocellular Carcinoma can Stratify Risk of Posttransplant Tumor Recurrence. Am J Surg Pathol. 2018 Apr 11. doi: 10.1097/PAS.0000000000001053. [Epub ahead of print] PubMed PMID: 29649017.
- Fels Elliott DR, Tavakol M, Lucas CH, Sheahon K, Kakar D, Hameed B, Ferrell LD, Gill RM. Clinicopathologic features and outcomes of parenchymal rejection in liver transplant biopsies [published online ahead of print, 2020 Jan 1]. Histopathology. 2020;10.1111/his.14058. doi:10.1111/his.14058
- Gill RM, Allende D, Belt PH, Behling CA, Cummings OW, Guy CD, Carpenter D, Neuschwander-Tetri BA, Sanyal AJ, Tonascia J, Van Natta ML, Wilson LA, Yamada G, Yeh M, Kleiner DE. The Nonalcoholic Steatohepatitis Extended Hepatocyte Ballooning Score: Histologic Classification and Clinical Significance. Hepatology Communications, 2023;7:e0033. https://doi.org/10.1097/HC9.0000000000000033
- Gill RM and Theise N. Vascular liver disease - emerging concepts in the sinusoidal space. Clinics in Liver Disease. 2025, in press, corrected proof, May 23, 2025.
PubMed Link: https://doi.org/10.1097/HC9.0000000000000033