[Changes of the WHO classification of lymphoid neoplasms in the context of the 2016 revision].

As a result of increasing knowledge, the validity of any tumour classification could not be unlimited. The aim of this article is to review the most important changes in the WHO classification of lymphoid neoplasms of a non-Hodgkin type that have been announced and published in relation to its revision in 2016. These changes are based on better understanding of pathogenesis and genetics of diseases, refine diagnostic criteria, reflect existence of rare forms and introduce new provisional categories of lymphoid neoplasms. WHO classification becomes more complex and the number of disease entities is increasing. However, until the the monography will be published, all changes are preliminary and incomplete, requiring work with available lymphoma literature.