Cervical versus Utero-Ovarian Ligament Injection of the Tracer for the Pelvic Sentinel Lymph Node Mapping in Gynecologic Oncology: A Prospective Observational Study.

The cervix and utero-ovarian ligament are two sites for the tracer injection that have a higher probability of detecting the same than a different pelvic sentinel lymph node. Given the higher technical challenge in performing the utero-ovarian ligament injection, these results suggest that the injection of the tracer into the cervix could be a more reliable alternative for the pelvic sentinel lymph node mapping in ovarian cancer.