Expression and clinical significance of FOXO1 in primary DLBCLs. (A) Immunohistochemical analysis of FOXO1 and phospho-SYK (Y525/6) expression in DLBCL samples. Shown are representative cases with positive and negative staining. Pictures were taken with ×60 objective. For the tabular representation of the immunohistochemical analysis of FOXO1 and phospho-SYK expression performed in a panel of 60 DLBCL patients, please see supplemental Table 11. (B) Overall survival of DLBCL patients with respect to FOXO1 expression.