American Journal of Surgical Pathology
International Society of Urological Pathology Multidisciplinary Expert Consultation Conference on Evaluation of Treatment Effects in Prostate and Bladder Cancer
Treatment effects in the urinary bladder are variable and range from localized post-transurethral resection changes to widespread systemic therapy effects. The International Society of Urological Pathology (ISUP) organized a consensus meeting in Vienna, Austria, in September 2025, focused on the evaluation of treatment effects in both the prostate and bladder. Working Group 2 was assigned the topic of the urinary bladder, and a group of pathologists and clinicians was convened. They worked cooperatively to develop …