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  Indian J Med Microbiol
 

Figure 1: Patterns of expression of alpha smooth muscle actin in different tumors. (a) Chondromyxoid areas of pleomorphic adenoma (b) ductal areas of pleomorphic adenoma (c) negative staining in epithelium of mucoepidermoid carcinoma, note the periepithelial connective tissue showing the positive staining (d) negative staining of epithelium and stroma of polymorphous low-grade adenocarcinoma

Figure 1: Patterns of expression of alpha smooth muscle actin in different tumors. (a) Chondromyxoid areas of pleomorphic adenoma (b) ductal areas of pleomorphic adenoma (c) negative staining in epithelium of mucoepidermoid carcinoma, note the periepithelial connective tissue showing the positive staining (d) negative staining of epithelium and stroma of polymorphous low-grade adenocarcinoma