# The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Lymphoid Neoplasms

“The 5th edition of the World Health Organization Classification of Haematolymphoid Tumours: Lymphoid Neoplasms” (2022), by Rita Alaggio et al. Medicine research paper. Original abstract below, unchanged. A free PDF is available.

- Authors: Rita Alaggio, Catalina Amador, Ioannis Anagnostopoulos, Ayoma D. Attygalle, Iguaracyra Araújo, Emilio Berti, Govind Bhagat, Anita Maria Borges, Daniel F. Boyer, Maria Calaminici et al.
- Published: June 22, 2022
- Field: Medicine
- DOI: https://doi.org/10.1038/s41375-022-01620-2
- Free PDF: https://www.nature.com/articles/s41375-022-01620-2.pdf

## Abstract

We herein present an overview of the upcoming 5 th edition of the World Health Organization Classification of Haematolymphoid Tumours focussing on lymphoid neoplasms. Myeloid and histiocytic neoplasms will be presented in a separate accompanying article. Besides listing the entities of the classification, we highlight and explain changes from the revised 4 th edition. These include reorganization of entities by a hierarchical system as is adopted throughout the 5 th edition of the WHO classification of tumours of all organ systems, modification of nomenclature for some entities, revision of diagnostic criteria or subtypes, deletion of certain entities, and introduction of new entities, as well as inclusion of tumour-like lesions, mesenchymal lesions specific to lymph node and spleen, and germline predisposition syndromes associated with the lymphoid neoplasms.

Canonical page: https://nerdi.pages.dev/paper/W4283381496
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