Upper urinary tract washings outperform voided urine specimens to detect upper tract high-grade urothelial carcinoma.

Among patients with confirmed UTHGUC, 50% of preceding VU specimens demonstrated high-grade features compared to almost 90% of UW specimens. Though VU cytology shows atypia in the majority of cases, it performs inferiorly to UW for the detection of UTHGUC. Diagn. Cytopathol. 2017;45:700-704. © 2017 Wiley Periodicals, Inc.