PTPRC and Eczematoid dermatitis: The results showed, that in both diseases, CD45+ immune cells increased about 6-fold in total tissue (epidermis and dermis) over controls, namely from ~260 cells/mm2 in controls to ~1440 cells/mm2 in Pso and ~1610 cells/mm2 in eczema (Figure 1a and representative images in Figure 1d).