Introduction: The Da Vinci single port (SP) robotic system has emerged as a valuable platform for minimally invasive urologic surgery in the past decade. While adoption has been growing rapidly for procedures such as pyeloplasty. partial nephrectomy and radical/simple prostatectomy. its application to retroperitoneal nephroureterectomy has been less thoroughly explored. https://www.marketingjeunesse.com/product-category/balayage-clay-lightener/