Cell block preparation in urine cytology: examination of utility and workflow in an academic practice

Urine cytology is a common non-invasive test to screen for urothelial carcinoma. Urine cell blocks may sometimes be prepared as a diagnostic aid (eg, to characterize architecture or perform immunohistochemistry). The aim of this study was to determine whether routinely preparing cell blocks on urine specimens improves diagnostic sensitivity.Three time periods were compared: time period 1 (prior to November 2009; 1437 consecutive selected cases),...