Amyand hernia

Amyand hernia is a rare form of an inguinal hernia in which the vermiform appendix is located within the hernial sac. It is seen in less than 1% of inguinal hernia. 

It should not be confused with an appendix-containing femoral hernia, known as De Garengeot hernia.

The term applies to inguinal hernia containing appendix regardless of whether there are complications such as appendicitis 5.

The appendix may remain in an inguinal hernia without symptoms. If complications develop, an atypical presentation of acute appendicitis is expected, which may mimic incarcerated inguinal hernia.

  • blind-ending tubular structure arising from cecum and extending into inguinal sac
  • dilated lumen, wall enhancement and thickening, peri-appendiceal fat stranding are suggestive of acute appendicitis
  • extension of the appendix into the inguinal sac
  • if acutely inflamed, the appendix is dilated, non-compressible, thickened and hypervascular

Claudius Amyand, was a French surgeon who performed the first successful appendectomy in 1735, on an 11-year-old boy who presented with an inflamed, perforated appendix in his inguinal hernia sac.

Article information

rID: 20363
Tag: stub, cases
Synonyms or Alternate Spellings:
  • Appendix within inguinal hernia
  • Amyand's hernia
  • Amyand's herniation
  • Amyand herniation

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Cases and figures

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  • CT

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  • Case 6: with gangrene found at surgery
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