343 External validation of tumour-free distance as novel prognostic marker in early-stage cervical cancer undergoing primary surgery

Introduction Tumor-free distance (TFD), defined as the minimum distance of uninvolved stroma between the tumor and peri-cervical stromal ring, was recently proposed as predictive marker of recurrence in patients with early-stage cervical cancer treated by primary surgery (particularly if ≤3.5 mm). The aims of the present study were to assess the prognostic value of TFD and to compare TFD with other known prognostic markers in early-stage cervical cancer. Methods Patients with pathologic FIGO 2009 stage IA1-IIB cervical cancer, treated by primary radical surgical treatment between 01/2000 and 12/2018, were retrospectively included. Adjuvant treatment was administered according to the presenc…