case_images: PMC3168574_01
case_images: Endoscopic photograph demonstrating a yellowish submucosal tumor in the cecum.
case_images: GASTROENTEROLOGY2011-943804.001.jpg
case_images: PMC3168574_01_GASTROENTEROLOGY2011-943804.001.jpg
case_images: fig1
case_images: Colonoscopy revealed a polypoid mass measuring approximately 0.7 cm in diameter (Figure 1).
case_images: Low magnification view of submucosal tumor arranged in nodules and sheets (H&E x 4).
case_images: GASTROENTEROLOGY2011-943804.002.jpg
case_images: PMC3168574_01_GASTROENTEROLOGY2011-943804.002.jpg
case_images: fig2
case_images: These nodules or sheets were surrounded by variable stroma (Figure 2).
case_images: Histological findings of the tumor showing positive immunoreaction for S-100 protein (immunohistochemical  stain x 400).
case_images: GASTROENTEROLOGY2011-943804.003.jpg
case_images: PMC3168574_01_GASTROENTEROLOGY2011-943804.003.jpg
case_images: fig3
case_images: Immunohistochemical analysis showed that the tumor cells expressed S-100 protein as well (Figure 3).