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Summary
for malignant melanoma patients, primary tumor excision with lymph node dissection achieved a 5-year disease-free survival in 67.5%. Microscopically positive lymph nodes in melanoma patients resulted in 45% survival, indicating the importance of thorough dissection.
Area of Science:
- Oncology
- Surgical Oncology
- Dermatology
Background:
- Malignant melanoma is a significant public health concern.
- Effective treatment strategies for melanoma are crucial for improving patient outcomes.
- The role of lymph node dissection in melanoma management requires clear definition.
Purpose of the Study:
- To evaluate the survival rates of malignant melanoma patients.
- To assess the impact of primary excision and lymph node dissection on disease-free survival.
- To compare the efficacy of different lymph node dissection techniques.
Main Methods:
- Retrospective review of 259 malignant melanoma patients.
- Analysis of 150 determinate cases with detailed follow-up.
- Comparison of survival outcomes based on surgical approach and lymph node status.
Main Results:
- Primary excision and in-continuity lymph node dissection yielded a 67.5% 5-year disease-free survival.
- Patients with clinically negative but microscopically positive lymph nodes had a 45% survival rate.
- Electric discontinuous node dissection showed no survival benefit over therapeutic dissection.
Conclusions:
- Primary surgical management including lymph node dissection is effective for malignant melanoma.
- Microscopic lymph node involvement significantly impacts melanoma prognosis.
- Discontinuous node dissection is not recommended for primary treatment of malignant melanoma.