Fig. 3

Macroscopic and microscopic findings. Macroscopic view of the luminal surface of the removed gallbladder showing extensive hemorrhage attached on the eroded mucosal tissue (a). Histology (low power view) shows widespread hemorrhage in the subserosa (b). Histology (medium power view) shows hemorrhagic ulceration with an exposed blood vessel (arrow). Abnormal distribution of arteries (A) was noted in the submucosa (c). Histology (high power view) showing hemorrhagic extravasation from a small vein (V). Arteriosclerosis with eccentric intimal hyperplasia of a small-sized artery was also seen in the subserosa (inset) (d)