Identification of structures containing AJs positive for both E- and N-cadherin in plasma membranes of a human hepatocellular adenoma. Laser-scanning, double-label immunostaining of plasma membranes in a cryostat section through a human hepatocellular adenoma using antibodies specific for E (green)- or N (red)-cadherin (only the merged color picture is presented). Note the colocalization of both cadherins in a high proportion of the tumor cells. Bar, 20 µm.