Letting the mantle out of the bag.

Mantle cell lymphoma is a rare disease that attracts the curiosity of clinicians and scientists due to its heterogeneous clinical behaviour, that can vary from indolent forms to the most aggressive presentations among non‐Hodgkin lymphomas. The report by Eyre and colleagues describes the current treatment strategies available in most countries, and offers insights to clinicians for several intriguing difficult‐to‐treat scenarios. Commentary on: Eyre et al. Diagnosis and management of mantle cell lymphoma: a British Society for Haematology Guideline. Br J Haematol 2024;204:108‐126. [ABSTRACT FROM AUTHOR]