The epithelial intensities of HAS1 (figure 3A,B), HAS2 (figure 3C,D) and HAS3 (figure 3E,F) immunostainings were significantly stronger in endometrial tumors compared to normal endometrium (p = 0.001, p = 0.004 and p = 0.003, respectively) (table 2). Here, HAS3 is linked to endometrium neoplasm.