Fig. 4From: An immunohistochemical study on the expression of sex steroid receptors, Ki-67 and cytokeratins 7 and 20 in feline endometrial adenocarcinomasCK7 and CK20 immunohistochemical expression in feline endometrium. a. CK7 is strongly expressed in all epithelia of normal endometrium in FS. Contrasting, b. CK20 is expressed with a low intensity of labelling. BAR = 250 μm. c. FEA displays a maintenance of CK7+ expression although with a heterogeneous positivity d. CK20+ immunophenotype in FEA shows a decreased expression and a scarcely, heterogeneous positivity. BAR = 100 μm. Counterstained with Gill’s haematoxylinBack to article page