Abstract
Approximately a half of swine examined had a fat storing area (F-area) in the quadrate lobe of the liver. This area was stained strongly by Sudan Black B (fat staining) and PAS (carbohydrate staining). The area was light brown to greyish yellow in appearance due to the deposition of lipid droplets. In cross section the F-area was wedge-shaped, and had a specific venous supply which directly connected it to the right gastric vein. The larger the connecting vein the wider the F-area, indicating that the connecting vein, not reported so far, is a key factor in the formation of the F-area. This would be a good model for the formation of partial fatty liver.
