Idiopathic Omental Infarction in a Child : A Case Report

Yukiko Okui, Junko Takahama, Satoru Sueyoshi, Koichi Ide, Satoru Iwasaki
Syuichiro Ue1）, Nagaaki Marugami2）, Shinji Hirohashi2）, Kimihiko Kichikawa2）
Department of Radiology and Pediatrics1）, Higashiosaka City General Hospital
Department of Radiology, Nara Medical University2）

Abstract
Idiopathic omental infarction is a rare cause of acute abdomen in children. We encountered a case of idiopathic omental infarction which we were able to diagnose by several imaging examinations and managed him with conservative treatment.
　　A 10-year-old boy was admitted with acute right upper quadrant pain. Abdominal US showed a hyperechoic mass with poor ill-defined margin in the right upper abdomen. Plain CT showed a mass-like lesion of omental fat with increased attenuation and hyperattenuated streaks.
　　Previous reports have demonstrated successful nonoperative management for idiopathic omental infarction. We conclude that it is important to distinguish idiopathic infarction from other conditions such as appendicitis, cholecystitis, or omental torsion, to avoid unnecessary surgery.

Keyword：Omental infarction, Upper quadrant pain, Acute abdomen, CT, US