In this article, we report on a case of combined, acinar and ductal prostatic adenocarcinoma affecting the prostatic urethra, which, due to a low degree of cytologic atypia and an exclusive papillary architecture with visible fibrovascular core, was erroneously diagnosed as a low-grade urothelial carcinoma based on its peculiar cytologic presentation in a bladder washing sample.
Keywords: Bladder washings; The Paris Classification for Urinary Cytology; Urinary cytology; Well-differentiated prostatic ductal carcinoma.
© 2020 S. Karger AG, Basel.