Background: Technetium Tc 99m tilmanocept is a synthetic radiotracer specifically designed for sentinel lymph node (SLN) mapping that has been FDA-approved in breast cancer. melanoma. and head and neck cancer. No published studies exist for the use of this radiotracer in endometrial cancer. https://www.foldlyers.shop/product-category/bnc-skt-sma-skt/