WHO/IARC Classification of Tumours - About

Objective

The objective of the WHO Classification of Tumours (WHO Blue Books) is to provide a uniform nomenclature of human cancers that is accepted and used worldwide. A standardized classification is necessary for pathologists, clinical oncologists, and cancer registries. It forms a basis for collecting histologically and genetically stratified, population-based incidence rates and is a prerequisite for comparing cancer therapy trials conducted in different centres and countries.