Which of the following describes Richter’s hernia: September 2009
**Core Concept**
Richter's hernia is a type of hernia that involves only a portion of the intestinal wall, leading to a potential complication of intestinal obstruction or ischemia. It occurs when a portion of the intestine becomes trapped in a hernia sac, compromising blood flow to the affected segment.
**Why the Correct Answer is Right**
Richter's hernia is named after the German surgeon Theodor Richter, who first described this condition. It typically occurs at the site of a hernia, where a portion of the intestine is pinched or compressed, leading to ischemia and potential necrosis. The affected segment of intestine may become trapped in the hernia sac, leading to obstruction or ischemia.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately describe Richter's hernia, which involves only a portion of the intestinal wall.
**Option B:** This option is incorrect because it describes a different type of hernia, such as an incarcerated hernia, which involves the entire thickness of the intestinal wall.
**Option C:** This option is incorrect because it describes a condition where a portion of the intestine is trapped in a hernia sac, but does not specifically refer to Richter's hernia.
**Clinical Pearl / High-Yield Fact**
A key aspect of Richter's hernia is that it can lead to significant morbidity and mortality if not promptly treated, making it essential to recognize this condition in patients presenting with abdominal pain or intestinal obstruction.
**Correct Answer: C. A hernia in which a portion of the intestine is trapped in the hernia sac.**