What is the pathophysiology of an abdominal Richter hernia?

Updated: Jul 23, 2019
  • Author: Assar A Rather, MBBS, MD, FACS; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

A Richter hernia occurs when only the antimesenteric border of the bowel herniates through the fascial defect. This hernia involves only a portion of the circumference of the bowel. Thus, the bowel may not be obstructed, even if the hernia is incarcerated or strangulated, and the patient may not present with vomiting. A Richter hernia can occur with any of the abdominal hernias and is particularly dangerous in that a portion of strangulated bowel may inadvertently be reduced into the abdominal cavity, leading to perforation and peritonitis. [10]


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