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Related Experiment Video

Updated: Feb 23, 2026

Analysis of Lymph Node Volume by Ultra-High-Frequency Ultrasound Imaging in the Braf/Pten Genetically Engineered Mouse Model of Melanoma
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Lymph node retrieval rates in melanoma: a quality assessment parameter.

D Berger-Richardson1, E Cordeiro2, M Ernjakovic1

  • 1Division of General Surgery, Department of Surgery, University of Toronto, Toronto.

Current Oncology (Toronto, Ont.)
|September 7, 2017
PubMed
Summary

Regional lymph node dissection (rlnd) for melanoma improves survival. A higher lymph node retrieval rate (lnrr) is linked to better local control, though an adequate lnrr standard is still debated.

Keywords:
Melanomalymph node retrieval ratesquality assessment

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Area of Science:

  • Surgical Oncology
  • Melanoma Research
  • Quality Improvement in Cancer Care

Background:

  • Regional lymph node dissection (rlnd) is crucial for melanoma with nodal metastasis, potentially improving survival.
  • Higher lymph node retrieval rates (lnrr) correlate with better local disease control.
  • A standardized definition for an adequate lnrr is currently lacking, hindering its use as a quality metric.

Purpose of the Study:

  • To analyze lymph node retrieval rates (lnrr) in patients undergoing regional lymph node dissection (rlnd) for malignant cutaneous melanoma.
  • To establish benchmarks for lnrr at a tertiary care center.
  • To assess the potential of lnrr as a quality indicator for melanoma surgical management.

Main Methods:

  • Retrospective cohort analysis of 207 patients who underwent rlnd for cutaneous melanoma between 2000-2010.
  • Data collection included indications for rlnd (positive sentinel lymph node biopsy or clinical lymphadenopathy) and recorded lnrrs.
  • Analysis of median and 10th percentile lnrr for axillary, inguinal, and ilioinguinal dissections.

Main Results:

  • Median lnrrs were 24 (axillary), 12 (inguinal), and 16 (ilioinguinal) nodes.
  • 10th percentile lnrrs were 14, 8, and 11 nodes, respectively.
  • Similar lnrrs were observed between patients with positive sentinel lymph nodes and those with clinical lymphadenopathy.

Conclusions:

  • The observed lymph node retrieval rates (lnrr) align with those reported at other specialized melanoma centers.
  • Establishing a minimum acceptable lnrr is a viable quality assessment parameter for surgical management of melanoma with nodal metastasis.