T-cell distribution in paired BM and PB samples. (A) UMAP of eosinophils, erythroblasts, granulocytes, lymphocytes, and monocytes. (B) UMAP of 25 lymphocyte subsets identified in BM and PB samples from patients with SMM (n = 10). (C) Correlation map comparing the frequency of each lymphocyte subset in BM to the subsets in PB. Size and color of circles are proportional to the correlation coefficients, and the number of asterisks represents significance. *< .05; **< .01; ***< .001. (D) Dumbbell plot reporting lymphocyte subset distribution between BM and PB (statistically significant differences are identified by red lines).