Fig. 4From: Giant gastric gastrointestinal stromal tumor with severe peritoneal dissemination controlled by imatinib therapy following debulking surgery: a case report a The microscopic findings of hematoxylin–eosin staining showing a bundle-like growth of spindle-shaped tumor cells. b Nuclear atypia is prominent, and the mitotic count is over 150 per 50 high-power fields. The red arrow shows mitosis. c Tumor cells growing externally from the proper muscle layer of the stomachBack to article page