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Sentinel lymph node biopsy in head and neck melanoma: A single institution analysis
Introduction:
The aim of our study was to analyze a series of patients from our institution who underwent surgery for head and neck cutaneous melanoma and who received sentinel lymph node biopsy (SLNB).
Material And Methods:
A single-center observational cohort of 120 head and neck melanoma patients was investigated from 2002 to 2011.
Results:
Among the 107 patients (89.2%) with lymph node identified during lymphoscintigraphy, at least one node was collected and analyzed in 96 patients (90.6%). A positive sentinel lymph node was found in 9.4% of patients. Our data showed higher failure rate of lymphoscintigraphic identification (11.7%), lower rate of SLN positivity (9.4%), and higher false-negative rate of SLNB (24.1%) than the usualfigures established for malignant melanomas in other locations. After a mean follow-up of 38.1 months, the disease-free survival (DFS) rate in the positive SLN group was 53% vs 75% for the negative SLN after 2 years of follow-up and 53% vs 48% after 5 years (p = 0.44).
Conclusion:
The complexity of lymphatic drainage and the anatomy of the cervical region probably accounts for a specificities which result in a lower predictive value of SLNB in head and neck melanoma than in MM in other locations.
