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EPV252/#67 Sentinel node mapping in endometrial cancer using hysteroscopic injection of indocyanine green and near-infrared fluorescence imaging
  1. G Bogani1,
  2. A Ditto2 and
  3. F Raspagliesi1
  1. 1Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Gynecologic Oncology, Milano, Italy
  2. 2Fondazione IRCSS Istituto Tumori di Milano, Gynecologic Oncology, Milano, Italy


Objectives To report on the performance of hysteroscopic injection of indocyanine green (ICG) for sentinel lymph node mapping (SNM) in endometrial cancer

Methods This is a retrospective cohort study of consecutive endometrial cancer patients who had SNM via hysteroscopic injection of IGC between 2013 and 2017. Detection rate, accuracy, and oncologic outcomes were evaluated

Results Charts of 52 patients were evaluated. At least one sentinel node was detected in 95% of patients. Bilateral pelvic mapping was found in 74% of cases. In 45% of cases, SLNs mapped in both pelvic and para-aortic nodes, and four cases (8%) in the para-aortic area, only. In three patients (6%) sentinel nodes were found in aberrant (parametrial/presacral) areas. Seven (13.5%) patients were diagnosed with nodal involvement. Low volume disease was observed in four (8%) patients (2 with isolated tumor cells and 2 with micrometastasis). After a median (range) follow-up of 34.7 (10, 61) months, five (9.6%) patients developed recurrences: two abdominal/distant, one vaginal, and one nodal (in the para-aortic area in a patient diagnosed with endometrioid G1 endometrial cancer and isolated tumor cells in a pelvic node). No patient died of disease.

Conclusions Hysteroscopic injection of ICG ensures delineation of lymphatic drainage from the tumor area, thus achieving accurate detection of sentinel nodes. Further evidence is warranted to assess the role of hysteroscopic injection in identifying extrapelvic sentinel nodes.

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