This is Episode 16: Bladder Post-Cystectomy Radiation, Follow-Up, and Salvage Pathways. This episode is high-yield because it addresses two common bladder cancer mistakes. First, it corrects the simplistic answer that radiation has no role after cystectomy. Second, it clarifies the need to act promptly when a patient, previously treated with trimodality therapy, experiences an invasive recurrence. In modern board-style teaching, this episode covers selective postoperative radiation for high-risk pathology and the importance of recognizing when salvage cystectomy is necessary.