Although patients with multiple myeloma (MM) have improved survival with current therapies, there remains a long-term risk of treatment-associated second primary malignancies. We present a case of a patient with IgG kappa MM undergoing treatment for relapsed disease who was noted to have progressive pancytopenia. For his MM, he had previously undergone autologous stem cell transplant with high-dose melphalan and had received immunomodulatory (IMiD) agents in induction, maintenance and relapse regimens. A peripheral blood smear showed abnormal lymphoid cells, and a bone marrow biopsy revealed B-cell acute lymphoblastic leukaemia (B-ALL). He underwent intensive induction chemotherapy with plans for possible allogeneic stem cell transplant. Secondary B-ALL is a rare occurrence in patients with MM, with exposure to alkylating and IMiD agents being potential risk factors.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9226925 | PMC |
| http://dx.doi.org/10.1136/bcr-2022-249637 | DOI Listing |
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