In this Review, Meeks et al. summarize heterogeneity in bladder cancer and how it affects tumour biology and clinical care. They describe current knowledge of tumour evolution, genomic heterogeneity and different tumour subtypes, as well as morphological heterogeneity seen in variant bladder cancer histology. They also discuss the influence of heterogeneity on treatment decision making, drug development and clinical trial design.
- Joshua J. Meeks
- Hikmat Al-Ahmadie
- Lars Dyrskjøt