Summary: Background: Early trials of long-term lenalidomide use reported an increased incidence of second primary malignancy (SPM). including acute myeloid leukaemia and myelodysplastic syndrome. Later. meta-analysis suggested the link to be secondary to lenalidomide in combination with melphalan. https://www.nacrack.com/save-now-JNC-Wheels-JNC006-Bronze-must-buy/