RESUMEN
BACKGROUND: Endoscopic laser-ablative therapy of upper tract urothelial carcinoma offers kidney-sparing treatment for well-selected low-risk tumors. The traditional technique consists of tumor biopsy with flexible forceps or nitinol basket for pathologic assessment of stage and grade, followed by laser ablation of the tumor. In this case, we present the use of the new T-1470 LiteTouch™ laser for intraoperative tumor en bloc resection, affording both tissue acquisition and tumor ablation. Case Presentation. An 81-year-old female with a past medical history significant for stage 4 chronic kidney disease, peripheral artery disease, coronary artery disease, type 2 diabetes mellitus, and gout was diagnosed with a 2 cm left upper tract high-grade papillary urothelial carcinoma confirmed by cytology with cell block preparation. Using a novel approach, the tumor was resected, en bloc, using the T-1470 LiteTouch™ laser which allowed for sufficient tissue resection for pathologic examination and strong hemostasis. This new technique is the first recorded example of tumor en bloc resection using the T-1470 LiteTouch™ laser of an upper tract urothelial carcinoma. CONCLUSION: The use of the T-1470 LiteTouch™ laser offers promise for its use as a novel laser for the endoscopic treatment of upper tract urothelial carcinoma. It shows potential for advantages over current techniques through its ability to achieve en bloc resection and superior hemostasis.