Fig. 5
From: Gastrointestinal stromal tumor coexisting with disseminated peritoneal leiomyomatosis
a Macroscopic finding of the tumor of broad ligament. A tumorous mass composed of numerous ill-defined or fused small nodules. b Microscopic finding of the tumor of broad ligament (HE × 20). Spindle cells with eosinophilic cytoplasm that resemble smooth muscle cells. c Immunohistochemical analysis of the pelvic lesion. They were positive for smooth muscle actin. d They were positive for ER