Huge peripheral primitive neuroectodermal tumor of the small bowel mesentery at nonage: A case report and review of the literature

Figure 1 Computerized tomography scan revealing a large ovoid solid and cystic tumor (17 cm × 15 cm × 10 cm) at the left upper quadrant (right arrow).

Figure 2 Macroscopically, a large ovoid solid and cystic tumor (20 cm × 20 cm × 10 cm) was observed at the left upper quadrant, and the tumor infiltrated the full-thickness wall of the jejunum (left arrow).

Figure 3 Macroscopically, an incision into the surface of the tumor revealed sclerotic tissue (up arrow) and bleeding regions inside the tumor (left arrow). The tumor had infiltrated the full-thickness wall of the jejunum (right arrow).

Figure 4 Small round cells containing uniform vesicular and Homer-Wright rosettes were found microscopically (right arrow, × 200).

Figure 5 Red blood cells were found between the tumor cells (right arrow, × 200).