ESTRO 2021 Abstract Book

S345

ESTRO 2021

Figure 1. Kaplan meier curves for LC, DFS and OS

Conclusion The present study reports a broad spectrum of therapeutic options in the context of adjuvant VC, which would deserve greater standardization in terms of doses, volumes and drugs used. Cooperative prospective studies are worthwhile for improving outcomes. PH-0446 The impact of lymph node ratio in patients with stage IIIC endometrial carcinoma C. Onal 1 , S. Yuce Sari 2 , G. Yavas 3 , O.C. Guler 1 , E. Yigit 2 , E. Oymak 4 , M. Gultekin 2 , F. Yildiz 2 1 Baskent University Faculty of Medicine, Department of Radiation Oncology, Adana, Turkey; 2 Hacettepe University Faculty of Medicine, Department of Radiation Oncology, Ankara, Turkey; 3 Baskent University Faculty of Medicine, Department of Radiation Oncology, Ankara, Turkey; 4 Iskenderun Gelisim Hospital, Division of Radiation Oncology, Hatay, Turkey

Purpose or Objective We investigated the prognostic value of the lymph node ratio (LNR) defined as the number metastatic lymph