Are we on track for diagnosing high‐grade urothelial carcinoma with a minimum quantity of five malignant cells in lower tract specimens? Critical analysis of The Paris System Quantitation Criteria
The Paris System for Reporting Urinary Cytology (TPS) requires at least 5–10 malignant cells to diagnose HGUC in lower and upper urinary tract specimens, respectively, which is still subject to discu…