PTPRC and endometriosis: Nevertheless, colocalization of HRH2 and HRH3 with CD45 was higher in this endometriosis tissue (HRH2: 0.34, 0.00–1.55; HRH3: 0.23, 0.05–0.47) than in control tissues (both 0.00, 0.00–0.00; p = 0.034 and p = 0.012, respectively; Figure 4F,G).