Immunohistochemistry of Liver 40X- Rhodamine
PV- Portal Vein
HA- Hepatic Artery
The three of these vessels together make up the portal triad.
This picture is labeled for Laminin, so the basal lamina of all of the vessels are labeled. We are making an educated guess at which vessel is the bile duct and which is the hepatic artery. Also, there are what appear to be two other vessels, one which may be a lymphatic vessel.