Cytopathology in Focus: Paris System: a new paradigm for urinary cytology
May 2016—The Paris System Working Group has proposed and published a standardized reporting system that redefines the primary purpose of urinary cytology: the detection of high-grade urothelial carcinoma (HGUC).1 A program to address standardization of urine cytology reporting was conceived at the 18th International Congress of Cytology in Paris in May 2013 where a number of people of like interest assembled and formed the Paris System Working Group.