2017, Number 3
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Med Cutan Iber Lat Am 2017; 45 (3)
Biologic behavior and value of sentinel lymph node biopsy in thick melanoma (prognostic factors of T4 melanoma)
Campos-Arbulú AL, Agostina-Mattioni L, Florencia-Reino R, Fernández-Vila JM, Arístides-Mezzadri N
Language: Spanish
References: 19
Page: 195-199
PDF size: 280.03 Kb.
ABSTRACT
Introduction: Sentinel node’s value in thick melanoma is controversial because of frequent metastasis. Our aim is to analyze the biological behavior and the usefulness of sentinel lymph node biopsy in thick melanoma.
Material and methods: Patients treated for T4 melanoma were analyzed. The variables considered were demographic, clinical, surgical, pathological and follow up.
Results: Forty patients included, 67% male, mean age 68.6 years old. Twenty-eight were ulcerated melanomas (70%). Median Breslow thickness was 6 mm (4.1-55). Seven showed macroscopic lymph node metastasis and lymphadenectomy was performed. In 9/24 patients the sentinel lymph node was positive and lymphadenectomy followed. In 3 patients an additional positive node was identified. Nodular histology was associated with positive sentinel node (p = 0.041). Specific mortality was 35% with 56 months of mean follow up (4-174). Five year overall, specific and disease free survival were 56.5%, 60% and 43%. When comparing positive versus negative sentinel node, five year overall survival was 55% and 63% (p = 0.36), specific survival 55% and 75% (p = 0.197) and disease free survival 32.5% and 71% (p = 0.08).
Conclusions: Thick melanomas are frequently ulcerated. Nodular histology predicted sentinel node positivity. The positive sentinel lymph node had a negative impact in survival. Sentinel node biopsy would have prognostic value in these patients.
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