Urinary cytology has a poor performance for predicting invasive or high‐grade upper‐tract urothelial carcinoma

Abstract

• In this cohort of patients with UTUC treated with radical surgery, urine cytology in isolation lacked performance characteristics to accurately predict muscle-invasive or high-grade disease. • Improved surrogate markers for pathological grade and stage are necessary, particularly when considering endoscopic modalities for UTUC.