Figure 1: Microscopic image of chronic cholecystitis with immunohistochemical results displaying the expression of beta-catenin and E-cadherin and the absence of MMP9. Images E–H display well-differentiated adenocarcinoma limited to gall bladder with complete membranous expression of E-cadherin in 90% of the tumor area, complete membranous expression of beta-catenin in 90% of the tumor area, and mild expression of MMP-9 in 30% of the tumor area