Figure 3From: Extragastrointestinal stromal tumor of the mesoappendix: CT findings and a review of the literatureHigh-power photomicrograph (hematoxylin-eosin, ×200) (a): The tumor is composed of spindle and epithelioid cells. (b): CD117 immunostaining of the tumor; CD117 is diffusely and strongly positive in the tumor cells. (c): CD34 immunostaining of the tumor; D34 is diffusely and strongly positive in the tumor cells.Back to article page