Naveen kumar Singh

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Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that support the findings of this study are available from the corresponding author upon reasonable request. References 1, , , et al., “Consensus Treatment Recommendations From the Tenth International Workshop for Waldenström Macroglobulinaemia,” Lancet Haematology 7, no. 11 (2020): e827–e837.

Keywords: Multiple myeloma, Pericardial effusion, Teclistamab, Extramedullary relapse Multiple myeloma is a plasma cell disorder characterized by osteolytic bone lesions, hypercalcemia, anemia, and renal failure. It represents 10% of all hematological cancers [1]. The disease typically follows a clinical course of alternating remissions and relapses.