Latest Novelties on the World Health Organization Morphological Classifications of Genitourinary Cancers

The World Health Organization (WHO) releases a periodic press classification describing updates of standard worldwide nomenclature of tumors in different organs and a brief synopsis on their primarily pathological diagnostic criteria and clinical significance. The prior edition of the WHO book on the classification of Tumors of the Urinary System and Male Genital Organs was published in 2004. In the current review, we provide the updates that were included in the 2016 edition of the WHO Classification of Tumors of the Urinary System and Male Genital Organs and are most pertinent to clinical practice. Due to a large time gap between the 2004 and 2016 editions, there are many changes that are substantially influential for both clinical and pathological practices of urological oncology. This review covers the updates in the urothelial tract, kidney, testicular, and prostate tumors as well as authors' practices in the areas that remained unresolved.