Foramen of Winslow hernia is a rare occurrence, accounting for only 8% of all internal hernias and 0.08% of all hernias. It presents a diagnostic challenge with subtle clinical and radio - logical features. The rate of preoperative diagnosis has been reported to be <10% of the intraoperatively confirmed cases. A delay in diagnosis and treatment is often observed and may be responsible for the high mortality rate of up to 49% . Here we describe a case of a 67-year-old man who presented with acute epigastric pain. A CT scan was suggested the diagnosis of an internal hernia. At laparotomy, the herniated small bowel was viable and reduction was achieved with gentle traction. Successful management of foramen of Winslow hernia requires prompt diagnosis and surgical treatment.