CD4 and inflammatory breast carcinoma: Strikingly, the Th17 subset represented the predominant subset among different CD4+ T cell subsets, constituting more than 30% of the isolated CD4+ T cells in non-IBC (30.37%, with an average 33.86 ± 5.27%, n = 10) and IBC patients (37.82%, with an average 26.18 ± 4.64%, n = 4) (Table 2), although there was no significant difference between non-IBC and IBC patients (Fig 1).