Lilian T. Gien MD, MSc, FRCSC
Associate Professor
Gynaecologic Oncology

Contact Info

T: (416) 480-4378


Sunnybrook Health Sciences Centre
2075 Bayview Ave, T2-104
Toronto, ON, M4N 3M5

Clinical Interests

endometrial cancer, minimally invasive surgery

Dr. Lilian T. Gien is a gynecologic oncologist in the Division of Gynecologic Oncology at the Odette Cancer Center, Sunnybrook Health Sciences Center.  Dr. Gien obtained her Bachelor of Science in Biology at Yale University, and her degree in Medicine at the University of Western Ontario. She completed her residency in Obstetrics & Gynecology at the University of Western Ontario, and her Fellowship in Gynecologic Oncology at the University of Toronto. During her Fellowship, she completed a Master’s of Science in Clinical Epidemiology through the Department of Health Policy, Management and Evaluation at the University of Toronto. Dr. Gien joined the Division of Gynecologic Oncology at Sunnybrook in 2009, and is an Assistant Professor at the University of Toronto.

Dr. Gien is also an Adjunct Scientist in the Cancer Program at the Institute for Clinical Evaluative Sciences (ICES) and an Affiliate Scientist at the Sunnybrook Research Institute. She is currently the Principal Investigator of a study investigating the patterns of care in vulvar carcinoma and its effects on survival, funded by a national peer-reviewed grant through the Canadian Cancer Society Research Institute. She also conducts health services research in endometrial cancer and minimally invasive surgery. Dr. Gien was awarded the Gynecologic Oncology Group (GOG) Young Investigator Award in 2012 and currently is a member of the NRG Oncology Cervix Committee in the US. She has been selected as a Principal Investigator for an arm in the Molecular Analysis for Treatment Choice (MATCH) trial funded by the US National Cancer Institute.

Publications and Awards

View PubMed search of this faculty member's recent publications.

Recent Publications

Bouchard-Fortier G, Geerts W, Covens A, Kupets R, Vicus D, Gien LT. Is venous thromboprophylaxis necessary in patients undergoing minimally invasive surgery for a gynecologic malignancy? Gynecologic Oncology 2014, 133: 229-233.

Simpson AN, Feigenberg T, Clarke BA, Gien LT, Ismiil N, Laframboise S, Massey C, Ferguson S. Fertility sparing treatment of complex atypical hyperplasia and low grade endometrial cancer using oral progestin. Gynecologic Oncology 2014, 133: 229-233.

Bernardini MQ, Gien LT, Tipping H, Murphy KJ, Rosen B. Surgical outcome of robotic surgery in the morbidly obese patient with endometrial cancer compared to laparotomy.  International Journal of Gynecologic Cancer, 2012, 221: 76-81.

Gien LT, Kupets R, Covens A.  Feasibility of same-day discharge after laparoscopic surgery in gynecologic oncology.  Gynecologic Oncology, 2011, 121: 339-343.

Gien LT, Mackay HJ.  PARP inhibition: advancing through the oncolytic arena.  Drugs of the Future, 2010, 35 (6): 481.

Gien LT, Covens A.  Fertility-sparing options in early cervical cancer.  Gynecologic Oncology, 2010, 117: 350-357.

Gien LT, Mackay HJ.  The emerging role of PARP inhibitors in the treatment of epithelial ovarian cancer.  Journal of Oncology, 2010, doi: 10.1155/2010/151750,

Gien LT, Beauchemin MC, Thomas G.  Adenocarcinoma: a unique cervical cancer.  Gynecologic Oncology, 2010, 116: 140-146.

Gien LT, Barbera L, Kupets R, Saskin R, Paszat L.  Utilization of preoperative imaging among uterine cancer patients.  Gynecologic Oncology, 2009, 115: 226-230.

Djordjevic B, Gien LT, Covens A, Malpica A, Khalifa MA.  Polypoid or non-polypoid?  A novel dichotomous approach to uterine carcinosarcoma.  Gynecologic Oncology, 2009, 115: 32-36.

Gien LT, Covens A.  Total mesometrial resection: the future or oblivion?  Lancet Oncology, 2009; 10: 644-645.

Gien LT, Covens A.  Lymph node assessment in cervical cancer: prognostic and therapeutic implications.  Journal of Surgical Oncology 2009; 99:242-247.

Gien LT, Covens A.  Quality assessment of sentinel node biopsy in cervix cancer.  Journal of Clinical Oncology, 2008, 26: 2930-2931.

Gien L, Kwon JS, Oliver TK, Fung-Kee-Fung M.  Adjuvant hormonal therapy in stage I endometrial cancers:  a systematic review and meta-analysis, Current Oncology, 2008, 15: 11-20.

Gien LT, Kwon JS, Carey MS.  Sentinel node mapping with isosulfan blue dye in endometrial cancer.  Journal of Obstetrics & Gynecology Canada, 2005, 27(12): 1107-1112.

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