CD4 and lymphedema: An increased infiltration of CD4+ cells was observed only in secondary lymphedema when compared to both the control and lipedema tissues, (C = 18.63 ± 3.405 cells/field, L = 21.48 ± 9.087 cells/field, LE = 34.86 ± 14.40 cells/field, H = 28.35 ± 11.05 cells/field).