An Ulcerated Ileal Gastrointestinal Stromal Tumor Disguised as Acute Appendicitis

Figure 2

Microscopic appearance of the ileal malignant GIST (stained with eosin/hematoxylin stain) under high-power magnification showing mitotic figures. (a) Tumor cells exhibiting epithelioid morphology (H&E; 20x). (b) Spindle cells in fascicles (H&E; 20x). (c) Areas with frequent mitotic activity (H&E; 40x).

(a)

(b)

(c)