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Related Experiment Videos

Groin dissection in malignant melanoma

C P Karakousis1, D L Driscoll, B Rose

  • 1Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, New York 14263.

Annals of Surgical Oncology
|July 1, 1994
PubMed
Summary

Radical groin dissection, including deep nodes, improves survival for patients with palpable inguinal nodes. This approach is crucial as deep node involvement significantly impacts prognosis, offering better outcomes than other treatments.

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Area of Science:

  • Oncology
  • Surgical Oncology
  • Clinical Research

Background:

  • Controversy exists regarding the extent of groin dissection (superficial vs. radical) and its efficacy when deep lymph nodes are involved.
  • Assessing the necessity and impact of deep node dissection in groin cancer management is critical.

Purpose of the Study:

  • To evaluate the outcomes of superficial versus radical groin dissections.
  • To determine the significance of deep lymph node involvement in groin dissections and its impact on patient survival.

Main Methods:

  • Retrospective review of 198 groin dissections performed between 1977 and 1991.
  • Analysis of node involvement (superficial, deep) based on palpability and histological findings.
  • Comparison of survival rates between patients with and without deep node involvement.

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Main Results:

  • Deep node involvement was observed in 43% of patients with palpable positive inguinal nodes and 18% with nonpalpable, histologically positive nodes.
  • Patients with positive nodes had significantly poorer survival rates (5-year: 36%, 10-year: 30%) compared to those with negative nodes (5-year: 73%, 10-year: 64%).
  • Survival was significantly worse for patients with deep node involvement (p = 0.006), with 5-year survival at 28% versus 41% for inguinal nodes only.

Conclusions:

  • Therapeutic groin dissection offers substantial survival benefits currently unattainable by other treatments.
  • Incontinuity dissection of deep nodes is recommended for palpable inguinal nodes due to considerable involvement and significant survival impact.