• Aust N Z J Obstet Gynaecol · Jun 2013

    Lymphovascular space invasion is highly associated with lymph node metastasis and recurrence in endometrial cancer.

    • Ho-Suap Hahn, In-Ho Lee, Tae-Jin Kim, Ki-Heon Lee, Jae-Uk Shim, Jae-Wook Kim, and Kyung-Taek Lim.
    • Department of Obstetrics and Gynecology, Cheil General Hospital and Women's Healthcare Center, Kwandong University College of Medicine, Seoul, Korea.
    • Aust N Z J Obstet Gynaecol. 2013 Jun 1; 53 (3): 293-7.

    BackgroundLymphovascular space invasion (LVSI) has been evaluated as a predictor for nodal metastasis or poor survival in endometrial adenocarcinoma.AimsTo evaluate whether LVSI is a prognostic factor for lymph node metastasis and relapse of disease in endometrial adenocarcinoma.Materials & MethodsWe retrospectively analysed the medical records of 438 women with endometrial adenocarcinoma treated by surgical staging, including pelvic and paraaortic lymph node dissection, between January 1996 and July 2011.ResultsOne hundred sixty-three women (37.2%) were LVSI-positive and 275 (62.8%) were negative. LVSI-positive women were significantly older and showed more advanced stage, poorer differentiation, and a higher frequency of non-endometrioid histology type, myometrial invasion, and positive peritoneal cytology than LVSI-negative women. Surgeries by laparotomy rather than laparoscopy and more adjuvant therapies were conducted in LVSI-positive women. The median number of pelvic and paraaortic lymph nodes removed were not different, but LVSI-positive patients showed more lymph node metastases. The LVSI-positive group also showed a higher recurrence of disease and lower survival rates than the LVSI-negative group. Negative predictive values of LVSI for lymph node metastasis and recurrence of disease were 96.4 and 97.1%, respectively. In multivariate analysis, LVSI did not influence overall or disease-free survival after adjusting for several confounding factors.ConclusionsIn the cases that the nodal status has not been assessed in endometrial adenocarcinoma, the presence of LVSI may be a reasonable surrogate in addition to other risk factors, in determining the need for adjuvant therapy.© 2013 The Authors ANZJOG © 2013 The Royal Australian and New Zealand College of Obstetricians and Gynaecologists.

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