Wenbin Xiao, Valentina Nardi, Eytan Stein, Robert P. Hasserjian
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A practical approach on the classifications of myeloid neoplasms and acute leukemia: WHO and ICC
In 2022, two new classifications of myeloid neoplasms and acute leukemias were published: the 5th edition WHO Classification (WHO-HAEM5) and the International Consensus Classification (ICC). As with prior classifications, the WHO-HAEM5 and ICC made updates to the prior classification (revised 4th edition WHO Classification, WHO-HAEM4R) based on a consensus of groups of experts, who examined new evidence. Both WHO-HAEM5 and ICC introduced several new disease entities that are based predominantly on genetic features, superseding prior morphologic definitions. While it is encouraging that two groups independently came to similar conclusions in updating the classification of myeloid neoplasms and acute leukemias, there are several divergences in how WHO-HAEM5 and ICC define specific entities as well as differences in nomenclature of certain diseases. In this review, we highlight the similarities and differences between the WHO-HAEM5 and ICC handling of myeloid neoplasms and acute leukemias and present a practical approach to diagnosing and classifying these diseases in this current era of two divergent classification guidelines.
期刊介绍:
The Journal of Hematology & Oncology, an open-access journal, publishes high-quality research covering all aspects of hematology and oncology, including reviews and research highlights on "hot topics" by leading experts.
Given the close relationship and rapid evolution of hematology and oncology, the journal aims to meet the demand for a dedicated platform for publishing discoveries from both fields. It serves as an international platform for sharing laboratory and clinical findings among laboratory scientists, physician scientists, hematologists, and oncologists in an open-access format. With a rapid turnaround time from submission to publication, the journal facilitates real-time sharing of knowledge and new successes.