Fig. 6

Microscopic findings. T-a Low-power field of hematoxylin eosin stain. T-b High power field of hematoxylin eosin stain. T-c Vascular invasion around the main tumor. T-d Neural invasion. T-e Ki-67 staining. F-a Low-power field of hematoxylin eosin stain in border area between the liver and mesentery. No direct infiltration was found. F-b High power field of hematoxylin eosin stain. F-c The center of the tumor showed extensive necrosis. F-d No tumor invasion was found in the round ligament. F-e Several tumor thrombi were found in the small veins of the falciform ligament. F-f Elastica van Gieson stain