Reproducibility of the Paris System in Urine Cytology by Third-Year Pathology Residents.

Introduction: Standardized basic morphology and the algorithmic approach make the Paris System (TPS) for Reporting Urinary Cytology understandable and applicable. This study examined how well the TPS categories are understood by pathology residents and how well these criteria are enabling them reaching accurate diagnosis.

Materials/methods: A hundred consecutive cases representing all categories were selected.