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2022-RA-1300-ESGO Multicenter experience on Sentinel Node Mapping in vulvar melanoma evaluation of clinical impact
  1. Simona Maria Fragomeni1,
  2. Angela Collarino2,
  3. Valentina Fuoco3,
  4. Fabio Martinelli4,
  5. Tina Pasciuto5,
  6. Giacomo Corrado1,
  7. Francesco Raspagliesi4,
  8. Vittoria Rufini2,6,
  9. Marco Maccauro3,
  10. Giovanni Scambia1,7 and
  11. Giorgia Garganese7,8
  1. 1Unità di Ginecologia Oncologica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
  2. 2Nuclear Medicine Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
  3. 3Department of Nuclear Medicine, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
  4. 4Department of Gynecologic Oncology, Fondazione IRCCS Istituto Nazionale Tumori di Milano, Milan, Italy
  5. 5Dipartimento Scienze della Salute della Donna, del Bambino e di Sanità Pubblica, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
  6. 6Institute of Nuclear Medicine, Università Cattolica del Sacro Cuore, Rome, Italy
  7. 7Dipartimento Universitario Scienze della Vita e Sanità Pubblica Sezione di Ginecologia ed Ostetricia, Università Cattolica del Sacro Cuore, Rome, Italy
  8. 8Gynecology and Breast Care Center, Mater Olbia Hospital, Olbia, Italy


Introduction/Background Melanoma of the vulva is a rare disease, often burdened by a poor prognosis. It is essential to define the optimal treatment in early stage disease. This multicenter retrospective study investigates the role of preoperative lymphoscintigraphy and sentinel node biopsy (SNB) and the impact of SNB on loco-regional control and survival in vulvar melanoma patients with clinically negative nodes (cN0).

Methodology All women treated between July 2013 and March 2021 were evaluated. Inclusion criteria consisted in: (i) histologically proven vulvar invasive melanoma, (iii) a Breslow tumor thickness of 1–4 mm and (iii) cN0 at preoperative evaluation. Patients selected underwent a preoperative lymphoscintigraphy followed by SNB with or without inguinofemoral lymphadenectomy. DFS and OS were assessed by the Kaplan-Meier method.

Results Eighteen women were included for a total of 28 groins studied. Planar images showed 51 sentinel nodes (SNs) in the enrolled inguinal regions. SNs were identified in all cases. Metastatic SNs were found in 5 patients (27,7%) for a total of 8 metastatic nodes in 7 groins (25%). Recurrent disease was diagnosed in 10 (55,5%) patients at 3 to 30 months: 7 were SN-negative, among which no specific groin recurrence was observed; 3 were SN-positive, among which 2 patients died of disease after 26.2 and 33.8 months, respectively. The overall mortality rate was 0% for SN negative and 40% in SN positive patients. OS and DFS at 36 months were 62.5% and 19.2%, respectively. The median DFS was 18.0 months (95% CI, 10.3–30.0).

Conclusion Lymphoscintigraphy followed by sentinel lymph node biopsy in patients with vulvar melanoma is feasible and allows adequate assessment of the stage of disease. Negative SNB is associated with low risk of groin relapse and good survival rate. Further prospective multicenter studies are needed to evaluate the criteria for clinical application.

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