Spontaneous internal herniation through the foramen of Winslow: a case report.

A 41-year-old woman, who presented with acute onset of generalized peritonitis, was found to have a segment of strangulated small bowel incarcerated in the lesser peritoneal sac through the foramen of Winslow. The strangulated small bowel was reduced and resected. The predisposing factors for this condition as mentioned in the literature were not present in this case. In particular, the herniation was associated with a small foramen of Winslow and the presentation was one of rapidly developing peritonitis.