Current concepts of odontogenic tumours – an update

Odontogenic tumours can pose significant diagnostic challenges for the pathologist because of their relatively low incidence, somewhat overlapping histology and subtle differentiating features. Despite similar histology, the biological behaviour and appropriate therapy differ significantly between entities and accurate diagnosis is therefore essential. This article reviews the most common and important odontogenic tumours and highlights key features that will assist the pathologist to diagnose and appropriately classify these lesions. In addition, several new concepts of classification are discussed as reflected in the latest (2017) World Health Organization (WHO) classification of odontogenic tumours.1 Important new developments in our understanding of the biology of these lesions are highlighted.