Role of sentinel lymph node biopsy in patients with thin melanoma

Sentinel lymph node (SLN) biopsy has emerged over the past 2 decades as a rational approach for staging regional lymph nodes in patients with clinically node-negative melanoma (stage I and II disease). Large multi-institutional studies have confirmed that when performed by experienced surgeons, it is an accurate, reliable technique for identifying occult regional nodal disease, and that SLN status is the most important prognostic factor in patients with stage I and II melanoma. However, the incidence of occult regional nodal metastasis in patients with thin melanoma (or= 1 mitosis/mm2). Including younger age (e.g.,