Figures & data
Figure 1. A. Sagittal scan of the contrast enhanced T1WI shows a large lobulated and moderately enhancing mass in the pelvic cavity. A cystic portion can be seen in the upper part of the mass. Note the compressed urinary bladder inferior to the mass. B. Axial scan of T2WI shows a large lobulated hyperintense mass in the pelvic cavity. The portions with bright signal intensity are seen inside of the mass, representing cystic components. Note the sigmoid colon posterior to the mass.
Figure 2. Histology of EGIST. A. Low power view shows that the tumor cells are composed of spindle cells and invade the surrounding tissue (hematoxylin and eosin×40). B. Extensive tumoral necrosis is noted (hematoxylin and eosin×100). C. High power view demonstrates frequent mitoses (60/10 High power field, hematoxylin and eosin×200). D. Immunohistochemically, the tumor cells test strongly positive for c-kit (×200).
