Sigmoid mesocolon hernia

Intersigmoid hernias, also known as sigmoid mesocolon hernias, occur when small bowel loops protrude into a peritoneal pocket (intersigmoid fossa) formed between two adjacent sigmoid segments and their mesentery.

Epidemiology

Sigmoid mesocolon hernias account for ~5% of all internal hernias 1,2.

Pathology

Some authors divide sigmoid mesocolon hernias into three categories 1,3:

  • intersigmoid hernia
  • transmesosigmoid hernia
  • intermesosigmoid hernia

It is difficult, maybe impossible, to distinguish these subtypes preoperatively with no clear radiographic sign identified to distinguish among the three subtypes 1,2. Thus, most radiologists and surgeons just refer to intersigmoid hernias, rather than trying to differentiate between them.

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Article information

rID: 20681
Synonyms or Alternate Spellings:
  • Intersigmoid hernia
  • Sigmoid mesocolon hernias
  • Transmesosigmoid hernia
  • intermesosigmoid hernia
  • Intersigmoid hernias
  • Intersigmoid herniaion
  • Sigmoid mesocolon herniation

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Cases and figures

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    Case 1: intersigmoid hernia
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