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Lymph node dissection in malignant melanoma
Abstract:
Regional node dissection was performed in 120 patients with malignant melanoma. Patients with clinically negative nodes had a 90% survival, whereas patients with enlarged nodes had a 15% survival. In 45 inguinal dissections, usually associated with a high morbidity, there was only a 4.5% incidence of infection and a 6.5% incidence of skin edge necrosis. For all types of node dissection, the overall incidence of wound infection was 5.8%, and that of necrosis of skin edges was 5%.
Insights
Regional node dissection significantly impacts malignant melanoma survival rates. Patients with negative nodes show 90% survival, while those with enlarged nodes have only 15% survival, highlighting the importance of lymph node status in melanoma prognosis.
Area of Science:
- Oncology
- Surgical Oncology
Background:
- Malignant melanoma is a significant health concern.
- Regional lymph node status is a critical prognostic factor in melanoma.
- Lymph node dissection is a common surgical procedure for staging and treatment.
Purpose of the Study:
- To evaluate the survival outcomes based on lymph node status in patients with malignant melanoma.
- To assess the morbidity associated with regional lymph node dissection, specifically focusing on inguinal dissections.
- To determine the incidence of wound complications following various types of node dissections.
Main Methods:
- A retrospective analysis of 120 patients with malignant melanoma who underwent regional node dissection.
- Classification of patients based on clinical lymph node status (negative vs. enlarged).
- Documentation of wound infection and skin edge necrosis rates for all dissections and specifically for inguinal dissections.
Main Results:
- Patients with clinically negative lymph nodes demonstrated a 90% survival rate.
- Patients with enlarged lymph nodes had a significantly lower survival rate of 15%.
- Inguinal dissections (n=45) showed low complication rates: 4.5% infection and 6.5% skin edge necrosis. Overall wound infection was 5.8%, and skin edge necrosis was 5%.
Conclusions:
- Regional node dissection is crucial for determining prognosis in malignant melanoma.
- The presence of enlarged lymph nodes is associated with poor survival outcomes.
- Regional lymph node dissection, including inguinal dissections, can be performed with acceptable low morbidity and wound complication rates.