SGK1 and AL amyloidosis: <h4>Purpose</h4>This research attempts to assess the prognostic significance of serum/glucocorticoid-regulated kinase 1 (SGK1) expression in peripheral blood mononuclear cells (PBMCs) of multiple myeloma (MM) individuals undergoing autologous hematopoietic stem cell transplantation (AHSCT) compared to traditional minimal residual disease (MRD) and serum free light chain (sFLC) assessments.<h4>Methods</h4>A single-center, retrospective study was carried out involving 85 MM individuals who underwent AHSCT.