Internal hernia of caecum through the foramen of Winslow.

Internal hernias through the foramen of Winslow are very rare. An 80-year-old female patient presented with epigastric and right upper quadrant pain associated with abdominal distention, nausea and vomiting for 1 day. A CT scan showed an internal hernia with terminal ileum and caecum identified within the lesser sac. The diagnosis was confirmed by laparotomy. A right hemicolectomy was performed to prevent further recurrence. We reviewed case reports with the same presentation by searching the Pubmed database using the keywords: 'foramen Winslow hernia, cecum'. We identified 23 publications. Our review extracted the following information: presentation, anatomical findings, pathological causes and surgical management. Misdiagnosis was common due to the limitations of plain abdominal X-rays. Abdominal CT scan is now the preferred radiological study and is more effective in establishing a diagnosis. Surgical treatment options varied. Right hemicolectomy has emerged as the preferred procedure to decrease the rate of recurrence. © BMJ Publishing Group Limited 2019. No commercial re-use. See rights and permissions. Published by BMJ.