Abstract
Sentinel lymph node (SLN) mapping has been adopted as an acceptable method of lymph node evaluation in the surgical staging for low-grade endometrial cancer. In this review, we analyze the literature on the utility of SLN mapping in high-grade endometrial cancer. SLN mapping in high-grade endometrial cancer demonstrates similar high detection rates and diagnostic accuracy as seen in low-grade endometrial cancers. However, obtaining sufficient operator experience (at least 30 cases) and following SLN mapping algorithm continues to be essential to preserving diagnostic accuracy. Although limited in retrospective study design and short-term follow-up, current studies have not demonstrated inferior survival outcomes of SLN mapping compared to traditional lymphadenectomy. SLN mapping is an acceptable and accurate method of lymph node evaluation in high-grade endometrial cancer. Future prospective studies are needed to evaluate long-term oncologic outcomes between SLN mapping and systematic lymphadenectomy in this patient population.
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