Cytohistologic correlation of recurrent urothelial carcinoma detected in urinary diversion specimens.

The current data demonstrate that abnormal cytology in urinary diversion specimens is rare but, when present, can help to detect recurrent urothelial carcinoma. Careful examination of these specimens is warranted to screen for features of high-grade urothelial carcinoma among a degenerated cellular and sometimes inflammatory background. Cancer Cytopathol 2017;125:120-127. © 2016 American Cancer Society.