Omental herniation through the esophageal hiatus: A rare cause of gastric outlet obstruction and its CT findings

Omental herniation through the esophageal hiatus: A rare cause of gastric outlet obstruction and its CT findings

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A man in his 60s visited the emergency department because of epigastric pain and vomiting.Noncontrast helical abdominal CT revealed a lipomatous mass on the right side of the lower esophagus.Caudal slices showed that the mass appeared to displace the gastric antrum causing gastric Shop by Brand outlet obstruction.Further observation revealed a linear structure from the greater curvature of the stomach into the omental vessels.Based on these findings, a diagnosis of intrathoracic omental hernia through the esophageal hiatus was made.

Intraoperatively, a defect in the lesser omentum was seen, and the greater omentum herniated through the defect into the esophageal hiatus.Omental herniation through the lesser omentum into the esophageal UC-II Collagen hiatus can present as gastric outlet obstruction.Keywords: Omental herniation, Hiatus hernia, Mediastinum, CT.