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Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology
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Different tracers for sentinel node detection in gynecologic oncology.

Joel Laufer1, Santiago Scasso1, Andrea Papadia2,3

  • 1Department of Gynaecology. Gynecologic Oncology Unit, Hospital Británico, Montevideo Uruguay.

Current Opinion in Oncology
|July 15, 2024
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Summary
This summary is machine-generated.

Indocyanine green (ICG) fluorescence imaging is the preferred tracer for sentinel lymph node (SLN) mapping in most gynecologic cancers. However, radioactive tracers remain standard for early-stage vulvar cancer SLN biopsy.

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Area of Science:

  • Gynecologic Oncology
  • Surgical Oncology
  • Nuclear Medicine

Background:

  • Sentinel lymph node (SLN) mapping has become a standard procedure, largely replacing complete lymphadenectomies in gynecologic oncology over the last decade.
  • This shift is driven by the need for accurate staging while minimizing surgical morbidity.

Purpose of the Study:

  • To review the latest literature on sentinel lymph node mapping techniques in gynecologic oncology.
  • To evaluate the efficacy of different tracers, particularly indocyanine green (ICG), in SLN mapping for various gynecologic malignancies.

Main Methods:

  • Comprehensive literature review of recent studies on SLN mapping in gynecologic cancers.
  • Analysis of tracer performance, focusing on indocyanine green (ICG) and technetium-99m (Tc-99m).

Main Results:

  • Indocyanine green (ICG) is strongly supported by current evidence as the tracer of choice for SLN mapping in endometrial and cervical cancers.
  • While ICG is used in vulvar cancer, often with Tc-99m, its impact has been less transformative compared to its role in cervical and endometrial cancers.

Conclusions:

  • ICG fluorescence imaging is now the preferred tracer for lymphatic mapping in the majority of gynecologic cancers.
  • For early-stage vulvar cancer, sentinel lymph node biopsy using radioactive tracers remains the established standard for lymph node status assessment.