Regional Distribution Mapping of Lymph Node Metastasis in Epithelial Ovarian Cancer

The goal of this observational study is to investigate the metastatic pathways of lymph node involvement in ovarian cancer patients. The main question it aims to answer is: • What are the sequential patterns of lymph node metastasis in ovarian cancer, and are there specific clinical factors associated with different metastatic pathways? Participants diagnosed with ovarian cancer who have undergone lymphadenectomy as part of their standard treatment will have their postoperative pathological lymph node involvement analyzed. The study will retrospectively collect and analyze patient data, including lymph node metastasis patterns, to identify potential progression routes.