case_images: PMC3246717_01
case_images: Upper endoscopic examination revealed a localized ulcerative lesion (diameter, 4 cm) located on the lesser curvature of the upper stomach.
case_images: CRIM2011-948328.001.jpg
case_images: PMC3246717_01_CRIM2011-948328.001.jpg
case_images: fig1
case_images: Upper endoscopic examination revealed a localized ulcerative lesion (diameter, 4 cm) located on the lesser curvature of the upper stomach (Figure 1).
case_images: Histological findings of the tumor (x 400). The tumor was uniform in shape and arranged in small microtubular structures (rosette-like arrangement) to form solid nests, with medium-sized, round-to-cuboid-shaped tumor cells. The tumor cells exhibited intense mitosis greater than 2/HPF (hematoxylin and eosin, (a)). Immunohistochemical staining showed that it was positive for synaptophysin (b) and chromogranin A (c). The Ki-67 labeling index was 70-80% (d).
case_images: CRIM2011-948328.002.jpg
case_images: PMC3246717_01_CRIM2011-948328.002.jpg
case_images: fig2
case_images: The tumor cells exhibited hyperchromatic nuclei and intense mitosis 46/10 HPF (Figure 2(a)). By immunohistochemical staining, the tumor cells were positive for synaptophysin (Figure 2(b)), chromogranin A (Figure 2(c)), and CEA and negative for S-100 protein. The Ki-67 labeling index was 70-80% (Figure 2(d)).