Erythrocyte deformability profile evaluated by laser diffractometry in patients with multiple myeloma: Re-examination of our cases

•Multiple myeloma is a complex pathology in the field of hematological neoplasms.•Multiple myeloma can often present changes in the hemorheological profile.•Several explanations of the behaviour of erythrocyte deformability in multiple myeloma•Hemorheological changes can interfere with the release of oxygen to peripheral tissues.