Predictors of positive non-sentinel nodes in sentinel node positive patients (occurs in 20-35%): amount of tumor in sentinel node, Breslow thickness of primary melanoma and density of dendritic WBCs in sentinel node paracortex (Mod Pathol 2004;17:747); also perinodal intralymphatic tumor (Ann Surg Oncol 2008;15:1723), depth of invasion in sentinel node (Ann Surg Oncol 2008;15:1202)
4 sequential sections of both halves of each sentinel node examined - first and fourth sections stained with H&E, second section stained for S100, and third section for HMB45 (Semin Diagn Pathol 2008;25:100)
End of Skin-melanocytic tumor > Miscellaneous > Sentinel node biopsy for melanoma
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