Photo of V. Liana Tsikitis, M.D., M.C.R., M.B.A., F.A.C.S., F.A.S.C.R.S.

V. Liana Tsikitis M.D., M.C.R., M.B.A., F.A.C.S., F.A.S.C.R.S.

Dr. Vassiliki "Liana" Tsikitis was appointed Assistant Professor of Surgery in the Division of Surgical Oncology at the University of Arizona College of Medicine and University Physicians Healthcare in November 2008. She joined the Division of Gastrointestinal and General Surgery at OHSU in September of 2011. During her tenure, she completed her Masters in Clinic Research (MCR) in 2013, and was promoted to Associate Professor of Surgery in 2014.

Dr. Tsikitis obtained her M.B.A. in healthcare policy at Brandeis University in 2019 and promoted to Professor of Surgery at OHSU. She currently serves as head of the Division of Gastrointestinal and General Surgery.

During her medical school, residency, fellowship, and her junior faculty years, Dr. Tsikitis won numerous awards in research, patient care, and teaching, including Outstanding Intern and Outstanding Resident awards, as well as Outstanding Role Model in Surgery. Institutionally, she is the Cancer Liaison Physician for the Commission on Cancer, and is sought after, both institutionally and locally to lecture on colon and rectal cancer, Inflammatory Bowel Disease (IBD).

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Areas of interest

  • Colorectal cancer genetics


  • M.D., Temple University School of Medicine, Philadelphia Pennsylvania 2000
  • M.C.R., Oregon Health & Science University, Portland Oregon 2013
  • M.B.A., Brandeis University, Heller School for Social Policy and Management, Wellesley Massachusetts 2019
  • Residency:

    • General Surgery, Warren Alpert School of Medicine, Brown University, Providence, RI, 2000-2007
  • Fellowship:

    • Colon-Rectal Surgery, Mayo Clinic School of Graduate Medical Education, Rochester, MN, 2007-2008
  • Certifications:

    • American Board of Surgery (2007; Recertified 2017)
    • American Board of Colon and Rectal Surgery (2009; Recertified 2017)

Honors and awards

  • 2017, American College of Surgeons/American Society of Colon and Rectal Surgeons Health Policy Scholarship recipient: “Leadership Program in Health Policy and Management”
  • 2017, Top Doctors, Portland Monthly Magazine
  • 2013, Department of Surgery Service Excellence Award, Oregon Health & Science University
  • 2010, The Charles F. Zukoski Award for Outstanding Role Model in Surgery, University of Arizona
  • 2007, Haffenreffer Fellow in Medical Sciences, Brown University
  • 2007, Dean's Teaching Excellence Award, Brown University
  • 2007, Brian A. Dorman, M.D., Surgical Education Award, Brown University
  • 2006, Outstanding Resident Physician, Brown University

Memberships and associations

  • Association for Academic Surgeons, Finance Committee
  • Alpha Omega Alpha Society
  • American Society of Clinical Oncology
  • American College of Surgeons, Fellow
  • American Society of Colon and Rectal Surgeons
  • Association for Academic Surgery
  • European Society of Coloproctology
  • International Society of Digestive Surgeons
  • International Society of Surgeons
  • Pacific Coast Surgical Association
  • Priestley Society of Mayo Clinic, Council Board
  • Society for Surgery of the Alimentary Tract, Research Committee
  • Southwest Oncology Group
  • Society of University Surgeons


  • "Disparities in treatment and survival of white and native American patients with colorectal cancer" Journal of the American College of Surgeons October 2011
  • "Scientific basis of neoadjuvant therapy" Seminars in Breast Disease June 2004
  • "Preoperative radiation therapy for upper rectal cancer T3,T4/Nx" Clinical Colorectal Cancer  2012
  • "Initial surgical management of ulcerative colitis in the biologic era" Diseases of the Colon and Rectum  2014
  • "Deficient Pms2, ERCC1, Ku86, CcOI in field defects during progression to colon cancer" Journal of visualized experiments : JoVE July 2010
  • "Surgeon leadership enables development of a colorectal cancer biorepository" American Journal of Surgery May 2013
  • "Perceived Impact of the 80-Hour Workweek" Journal of Surgical Research September 2009
  • "Advantages of fast-track recovery after laparoscopic right hemicolectomy for colon cancer" Surgical Endoscopy and Other Interventional Techniques August 2010
  • "Molecular markers for colon diagnosis, prognosis and targeted therapy" Journal of Surgical Oncology January 1 2015
  • "Predictors of recurrence free survival for patients with stage II and III colon cancer" BMC Cancer May 16 2014
  • "Strength of tissue attachment to composite and ePTFE grafts after ventral hernia repair." Journal of the Society of Laparoendoscopic Surgeons October 2007
  • "Psychiatric Illness is a Disparity in the Surgical Management of Rectal Cancer" Annals of Surgical Oncology September 11 2015
  • "Differential expression of microRNA-320a, -145, and -192 along the continuum of normal mucosa to high-grade dysplastic adenomas of the colorectum" American Journal of Surgery  2014
  • "Postoperative surveillance recommendations for early stage colon cancer based on results from the clinical outcomes of surgical therapy trial" Journal of Clinical Oncology August 1 2009
  • "Epidemiology of Inherited Colon Cancer" Seminars in Colon and Rectal Surgery June 2011
  • "Survival in Stage III Colon Cancer Is Independent of the Total Number of Lymph Nodes Retrieved" Journal of the American College of Surgeons January 2009
  • "Chemoradiotherapy with a radiation boost for anal cancer decreases the risk for salvage abdominoperineal resection" Annals of Surgical Oncology October 1 2014
  • "Postoperative Morbidity with Diversion after Low Anterior Resection in the Era of Neoadjuvant Therapy" Journal of the American College of Surgeons July 2009
  • "Increasing the number of lymph nodes examined after colectomy does not improve colon cancer staging" Journal of the American College of Surgeons  2014
  • "Neoadjuvant vs adjuvant pelvic radiotherapy for locally advanced rectal cancer" World Journal of Gastroenterology February 21 2011
  • "Enhanced visibility of colonic neoplasms using formulaic ratio imaging of native fluorescence" Lasers in Surgery and Medicine November 2013
  • "ß-glucan affects leukocyte navigation in a complex chemotactic gradient" Surgery (United States) August 2004
  • "Stage III & IV colon and rectal cancers share a similar genetic profile" American Journal of Surgery May 2013
  • "Avirtual reality endoscopic simulator augments general surgery resident cancer education as measured by performance improvement" Journal of Cancer Education  2014
  • "Chloroma/granulocytic sarcoma" Journal of Cancer  2010
  • "Ratio images and ultraviolet C excitation in autofluorescence imaging of neoplasms of the human colon" Journal of Biomedical Optics  2013
  • "Trends in the surgical management of diverticulitis" Annals of Gastroenterology  2015
  • "Reply" Journal of the American College of Surgeons December 2009
  • "Trends of incidence and survival of gastrointestinal neuroendocrine tu-mors in the united states" Journal of Cancer  2012
  • "Trends in the Surgical Management of Crohn’s Disease" Journal of Gastrointestinal Surgery August 19 2015

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