Case of ileal herniation through the foramen of Winslow diagnosed preoperatively by CT and treated with laparoscopic surgery

Abstract

A previously healthy 35-year-old man visited the emergency room complaining of epigastric pain and vomiting. The pain was sudden in onset. His blood tests were within normal limits except for a mild neutrophilia of 14 300/μL. Enhanced abdominal CT scan showed the small intestine dilated into the space between the portal vein and inferior vena cava from the foramen of Winslow. Under the diagnosis of herniation through the foramen of Winslow (HFW), we performed emergency laparoscopic surgery. Laparoscopy revealed an internal herniation of the dilated small intestine through the foramen of Winslow. Because the herniated small intestine was viable, intestinal resection was unnecessary. We released the incarceration under laparoscopy. HFW is very rare and often overlooked, but abdominal CT examination enabled a precise preoperative diagnosis because of characteristic findings. We should consider the possibility of HFW in patients with internal herniation of unknown origin. Laparoscopic surgery for HFW is effective.

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