In a lymphadenectomy, all of the lymph node-containing tissue is removed from the region. Limited dissection does not guarantee adequate removal of positive nodes, therefore, a "node-picking" operation should not be performed. Adequate dissection reduces the chance for recurrence in dissected lymph node stations. Such recurrence are difficult to treat.
Extranodal growth, extensive tumor involvement, or tumor spillage during an operation, should often be treated with radiation to prevent local recurrence.
Lymphadenectomy is performed in the:
- Malignant melanoma with regional lymph node metastasis