Marginal zone lymphomas: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up

•This updated ESMO Clinical Practice Guideline provides key recommendations on the management of marginal zone lymphomas.•Authorship includes a multidisciplinary group of experts from different institutions and countries in Europe and abroad.•A summary of recommendations is provided, including levels of evidence and grades of recommendation where applicable.•The distinct disease entities (i.e. extranodal, nodal and splenic marginal zone...