Colonic adenocarcinoma: immunohistochemical staining for Sialyl Lewis antigen. Note the enhancement of the luminal membrane staining of colonic epithelial cells. CA19-9: clone C241:5:1:4
Colonic adenocarcinoma: immunohistochemical staining for Sialyl Lewis antigen. Note the enhancement of the luminal membrane staining of colonic epithelial cells. CA19-9: clone C241:5:1:4