Abstract
A 22-year-old man was admitted to our hospital because of the sudden onset of upper abdominal pain of unknown cause in the morning. An abdominal CT scan showed ascites in the abdominal cavity and a mass in the left omentum, which was not enhanced by contrast CT, without extravasation of contrast medium. Angiographic examination of the abdomen did not indicate extravasation. From these findings intraabdominal hemorrhage caused by bleeding from the greater omentum was suspected. Vital sighs were stable, but laparoscopic operation was carried out to search the cause of the omental hemorrhage and to avoid possible risk of rebleeding. We found hematoma inside the greater omentum. Partial resection of the omentum including the left gastroepiploic vessel was done. His postoperative course was uneventful. Pathologic examination of the omentum presented no abnormal findings. Thus idiopathic omental hemorrhage was diagnosed.
We present the case with a review of the literature.
