Epiploic foramen hernia

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Fairly common in horses

Herniation through the epiploic foramen is a rare internal hernia and easy to miss clinically with the risk of bowel ischaemia and sepsis[1]. This has lead in some series to mortality rates of high mortality rates of around 36–49%[2]. Herniation is more likely in those with anatomical variants that result in:

  • Mobile caecum and ascending colon with long mesentery
  • Elongated right hepatic lobe
  • Large epiploic foramen