Department of Radiology;
Chang Gung Memorial Hospital-Kaohsiung Medical Center;
Chang Gung University College of Medicine;
Kaohsiung Hsien;
833;
Taiwan;
China;
Department of Pathology;
Chang Gung Memorial Hospital-Kaohsiung Medical Center;
Chang Gung University College of Medicine;
Kaohsiung Hsien;
833;
Taiwan;
China;
Department of Pediatric Surgery;
Chang Gung Memorial Hospital-Kaohsiung Medical Center;
Chang Gung University College of Medicine;
Kaohsiung Hsien;
833;
Taiwan;
China;
Inflammatory myofibroblastic tumor; Malignant transformation; Pediatric patient; Pelvis; Extraperitoneal space; Computed tomography;