Para-Aortic Lymph Node Dissection for Patients with Node-Negative Cervical Squamous Cell Carcinoma: A Retrospective Cohort Study

Figure 1

Flow chart of the study. CSCC: cervical squamous cell carcinoma; FUSCC: Fudan University Shanghai Cancer Center; FIGO: International Federation of Gynecology and Obstetrics; LVSI: lymph-vascular space invasion; SCC-Ag: serum squamous cell carcinoma antigen; PALN: para-aortic lymph node; RH: radical hysterectomy; PLND: pelvic lymph node dissection; PALND: para-aortic lymph node dissection; PFS: progression-free survival; OS: overall survival.