铜中毒，胆汁淤积，绵羊，显微照片铜中毒

Photomicrograph of liver tissue from a 2-year-old sheep with copper toxicosis. Note the severe vacuolar changes affecting hepatocytes (black arrows), as well as bile plugs from severe cholestasis (yellow arrows). Rare, light-green copper pigment is also evident (black arrowhead). Magnification 400X.