Fig. 1

Abdominal and pelvic CT scan, 3D reconstruction and ECT demonstrating the tumor originating in the ileum of the patient. CT scan was performed immediately after enteroscopy. Thus, the patient’s intestine was dilated. a Coronal scan arterial phase reveals that the tumor was derived from ileal wall. b 3D reconstruction with volume rendering technique illustrates the supporting vasculature. c 3D reconstruction with maximum intensity projection demonstrates major vascular support of the tumor. d Postoperative bone scintigraphy proved that there was no lesion in her skeletal system. e Plain scan revealed pelvic a 10.0 × 7.6 × 5.3 cm mass with areas of necrosis. Most of the mass was had clear boundaries with surrounding tissues, although part of it obliterated the lumen of the terminal ileum. Workup for metastasis was negative. f-h Contrast-enhanced arterial, venous, and delayed phase pelvic CT scan revealed enhancement of the solid part of the tumor in all phases, with the peak in the arterial phase