FCGR3A and breast cancer: Considering the low number of patients within the two BC subgroups, we compared results obtained for the wild type FcγRIIIA 158 V/V and FcγRIIA 131H/H genotypes with those obtained for the mutated 158F (F/V together with F/F) and 131R (R/H together with R/R) carrier genotypes, respectively.