Overview
Urothelial malignancy is one of the commonest cancers in Western society and involves the bladder, urethra, ureters, and renal calyces. It is associated with smoking, industrial dyes, schistosomiasis, radiation exposure, and certain geographical locations. Well‐defined molecular prognosticators and predictors have been identified, and in combination with improved staging techniques, have led to improved outcomes. Patients with nonmuscle invasive urothelial malignancy are best managed by surgical resection, often in combination with intravesical immunotherapy or chemotherapy. Muscle invasive disease is best managed by neoadjuvant cisplatin‐based chemotherapy followed by cystectomy; less robust patients are often effectively treated by chemoradiation. Patients with metastatic disease achieve response rates of up to 70% with MVAC or GC combination chemotherapy but are infrequently cured. The major innovation in the past decade has been the introduction of targeted therapies, in particular directed to the PD1/PD‐L1 interface, which have shown substantial activity in first‐line and salvage treatment of early‐stage and metastatic disease, but with a new spectrum of side effects.