Figure 1. A eight-year-old boy with acute abdominal pain and bilious vomiting. A, Diffuse distension of the small bowel and a transition point with the mass (arrow head) in the right pelvic cavity in coronal computed tomographic image. The distal ileum (arrow) was completely collapsed in the region distal to the transition point. B, A 10.5-cm long intraluminal tubular mass with heterogeneous hyperdensity in the distal ileum in computed tomographic image at the level of the pelvic cavity. C, the intraluminal nature of the mass (arrow head) in sagittal computed tomographic image. D, A multiloculated cystic mass in the right pelvic cavity, superior to the urinary bladder (asterisk) in an ultrasonographic image. The echogenic portion within the mass was suspected to be the hemorrhagic portion.
