Oliver S. Eng
Biography
Oliver Eng, MD, FACS, FSSO, is a surgical oncologist and an Associate Professor in the Division of Surgical Oncology at the University of California, Irvine, where he serves as Deputy Associate Director for Clinical Science at the Chao Family Comprehensive Cancer Center and Program Director of the Complex General Surgical Oncology Fellowship. He is a double board-certified surgeon and surgical oncologist who focuses on the treatment of peritoneal metastases and in complex cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC). Dr. Eng has co-authored numerous peer-reviewed publications and has received extramural funding for his research, which centers on better understanding the molecular and immunologic characteristics of peritoneal tumors. His research aims to develop innovative therapies for metastatic disease and optimize outcomes and care in cancer patients. He is a principal investigator or co-investigator on multiple clinical trials and serves on the editorial board for a variety of scientific journals. Dr. Eng has been appointed to lead a number of national committees, and is currently a Director on the American Board of Surgery Complex General Surgical Oncology Board.
Return to topDistinctions
- Fellow, Society of Surgical Oncology
- Fellow, American College of Surgeons
- Member, Society of University Surgeons
- Alpha Omega Alpha Honor Medical Society
- Faculty Excellence in Teaching Award, University of Chicago Department of Surgery
- 40 Under 40 in Cancer Award, The Lynx Group
Areas of Expertise
- Surgical Oncology
- Cytoreductive Surgery With HIPEC
- Peritoneal Surface Malignancies
- Appendiceal Cancer Management
- Circulating Tumor DNA Biomarkers
- Metabolic Phenotyping Cancer
- Health Disparities Oncology
Recent Publications
- Pu T., Gustafson A., Luberice K., Akmal S.R., Li W., Hernandez J.M., Blakely A.M., Snyder R.A., Eng O.S., “Underrepresentation of Racial and Ethnic Minorities in Metastatic Colorectal Carcinoma Clinical Trials Within the United States” (opens in new tab), Annals of Surgery, vol. 283, pp. 316-325, 2026.
- Bansal VV, Witmer HDD, Childers CP, Su DG, Turaga KK, “When Benchmarks Fail Us: A Case Study in Cytoreductive Surgery” (opens in new tab), Annals of Surgical Oncology, vol. 32, no. 1, pp. 19-23, 2025.
- Khorfan R, Sedighim S, Caba Molina D, Tran TB, Senthil M, O'Leary MP, Eng OS, “National Trends and Outcomes in Cytoreductive Surgery for Colorectal Cancer with Peritoneal Metastases Before and After PRODIGE 7” (opens in new tab), Annals of Surgical Oncology, vol. 32, no. 4, pp. 2292-2299, 2025.
- Sedighim S, Khoran R, Shin J, Khan A, Tang YI, Li AY, Senthil M, O'Leary MP, Eng OS, “Disparities in Palliative Treatment Utilization in Metastatic Colorectal Cancer Patients” (opens in new tab), Annals of Surgical Oncology, vol. 32, no. 3, pp. 1422-1424, 2025.
- Vierra M, Morgan R, Eng OS, “Contemporary Management of Malignant Ascites” (opens in new tab), Journal of Surgical Research, vol. 307, pp. 157-175, 2025.
- Hasjim BJ, Ostowari A, Gandawidjaja M, Mohammadi MD, Murphy LS, Whealon MD, Vilchez V, Ichii H, Redfield RR, Eng OS, “De Novo Colorectal Cancer After Kidney Transplantation: A Systematic Review and Meta-Analysis” (opens in new tab), British Journal of Cancer, vol. 132, pp. 1010-1018, 2025.
- Vierra M., Morgan R.B., Ostowari A., Turaga K.K., Shergill A., Eng O.S., “Systemic chemotherapy in patients with unresectable pseudomyxoma peritonei from low-grade appendiceal mucinous neoplasms: a case series” (opens in new tab), Journal of Gastrointestinal Oncology, vol. 16, pp. 757-765, 2025.
- Sedighim S., Khorfan R., Shin J., Khan A., Tang Y.I., Li A.Y., Senthil M., O'Leary M.P., Eng O.S., “ASO Visual Abstract: Disparities in Palliative Treatment Utilization in Patients with Metastatic Colorectal Cancer” (opens in new tab), Annals of Surgical Oncology, vol. 32, pp. 2318-2319, 2025.
- Sneider AP, Dhiman A, Morgan R, Tun S, Turaga KK, Eng OS, “Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy postoperative symptomatology: palliative care impact.” (opens in new tab), BMJ Supportive and Palliative Care, vol. 13, no. e3, pp. e872-875, 2024.
- Vierra M, Bansal VV, Morgan RB, Witmer HDD, Reddy B, Dhiman A, Godley FA 4th, Ong CT, Belmont E, Polite B, Shergill A, Turaga KK, Eng OS, “Fragmentation of Care in Patients with Peritoneal Metastases Undergoing Cytoreductive Surgery.” (opens in new tab), Annals of Surgical Oncology, vol. 31, no. 1, pp. 645-654, 2024.
- Eng OS, Delman KA, Barry CL, Dineen SP, Larkin AC, “Standard Setting for the CGSO Qualifying Examination: A structured approach setting a meaningful standard.” (opens in new tab), Annals of Surgical Oncology, vol. 31, no. 6, pp. 3569-3571, 2024.
- Ostowari A, Hasjim BJ, Lim L, Yu J, Nguyen L, Dayyani F, Zell J, Cho M, Senthil M, Eng OS, “Clinical Outcomes in Patients with Krukenberg Tumors from Colorectal Cancer.” (opens in new tab), Journal of Surgical Research, vol. 299, pp. 343-352, 2024.
- Khorfan R, Sedighim S, Caba-Molina D, Tran TB, Senthil M, O'Leary MP, Eng OS, “Improved Survival with Immunotherapy for Microsatellite Unstable Colorectal Cancer with Peritoneal Metastases.” (opens in new tab), Journal of Surgical Oncology, vol. 130, no. 3, pp. 613-621, 2024.
- Nee K, Hosohama L, Alobulia W, Kim AC, Senthil M, Eng OS, “Defining colorectal cancer cells on a single cell level reveals LGR5+ proliferative stem cell expression in peritoneal metastasis.” (opens in new tab), Annals of Surgical Oncology, vol. 31, no. 10, pp. 6369-6372, 2024.
- Su DG, Dhiman A, Bansal VV, Zha Y, Shergill A, Polite B, Alpert L, Turaga KK, Eng OS, “Mutational Features and Tumor Microenvironment Alterations in High-Grade Appendiceal Cancers treated with iterative Hyperthermic Intraperitoneal Chemotherapy (HIPEC)” (opens in new tab), JCO Precision Oncology, vol. 8, pp. e2400149, 2024.
- Ong CT, Dhiman A, Smith A, Jose A, Kallakuri P, Belanski J, Sood D, Witmer H, Turaga KK, Eng OS, “Insurance Authorization Barriers in Patients Undergoing Cytoreductive Surgery and HIPEC” (opens in new tab), Annals of Surgical Oncology, vol. 30, no. 1, pp. 417-422, 2023.
- Morgan RB, Dhiman A, Sood D, Ong CT, Wu X, Shergill A, Polite B, Turaga KK, Eng OS, “Mutational Profiles and Prognostic Impact in Colorectal and High-Grade Appendiceal Adenocarcinoma with Peritoneal Metastases” (opens in new tab), Journal of Surgical Oncology, vol. 127, no. 5, pp. 831-840, 2023.
- Sneider A, Dhiman A, Sood D, Ong C, Tun S, Malec M, Levine S, Turaga KK, Eng OS, “Palliative Care and Characterization of Symptoms in Patients Undergoing CRS/HIPEC” (opens in new tab), Journal of Surgical Research, vol. 283, pp. 1154-1160, 2023.
- Hanse EA, Wang T, Tifrea D, Senthil M, Kim AC, Kong M, Eng OS, “A Novel Assessment of Metabolic Pathways in Peritoneal Metastases from Low Grade Appendiceal Mucinous Neoplasms.” (opens in new tab), Annals of Surgical Oncology, vol. 30, no. 8, pp. 5132-5141, 2023.
Most Cited Publications
- The Chicago Consensus Working Group, “The Chicago Consensus on Peritoneal Surface Malignancies: Management of Appendiceal Neoplasms.” (opens in new tab), Annals of Surgical Oncology, vol. 27, no. 6, pp. 1753-1760, 2020.
- Vining CC, Eng OS, Hogg ME, Schuitevoerder D, Silverman RS, Yao KA, Winchester DJ, Roggin KK, Talamonti MS, Posner MC, Turaga KK, Tseng J, “Virtual Surgical Fellowship Recruitment During COVID-19 and Its Implications for Resident/Fellow Recruitment in the Future.” (opens in new tab), Annals of Surgical Oncology, vol. 27, no. Suppl 3, pp. 911-915, 2020.
- Eng OS, Dumitra S, O'Leary M, Raoof M, Wakabayashi M, Dellinger TH, Han ES, Lee SJ, Paz IB, Lee B, “Fluid administration and morbidity in cytoreductive surgery with hyperthermic intraperitoneal chemotherapy.” (opens in new tab), JAMA Surgery, vol. 152, no. 12, pp. 1156-1160, 2017.
- Eng OS, Goswami J, Moore D, Chen C, Gannon CJ, August DA, Carpizo DR, “Intraoperative fluid administration is associated with perioperative outcomes in pancreaticoduodenectomy: a single center retrospective analysis” (opens in new tab), Journal of Surgical Oncology, vol. 108, no. 4, pp. 242-7, 2013.
- Eng OS, Tsang AT, Narayanan S, Moore D, Chen C, Carpizo DR, Gannon CJ, August DA, Melstrom LG, “Outcomes of microwave ablation for colorectal cancer liver metastases: a single center experience” (opens in new tab), Journal of Surgical Oncology, vol. 111, no. 4, pp. 410-3, 2015.
Contact Information
Email: oeng@hs.uci.edu
Phone: 714-456-6847
Address: Chapman Pavilion, Ste 6200, Orange, CA 92868
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Last updated on 5/26/2026.