An interparietal hernia at the level of arcuate line and lateral border of rectus is called
**Core Concept**
An interparietal hernia is a type of hernia that occurs through the interparietal space, which is the area between the peritoneal reflections of the abdominal wall. The arcuate line and the lateral border of the rectus sheath are anatomical landmarks that are relevant to this type of hernia.
**Why the Correct Answer is Right**
The correct answer is a type of interparietal hernia that specifically occurs at the level of the arcuate line and the lateral border of the rectus sheath. This type of hernia is also known as a Spigelian hernia. It occurs through the Spigelian fascia, which is the aponeurotic layer between the rectus abdominis muscle and the semilunar line. The arcuate line is a weak point in the abdominal wall where the transversus abdominis muscle inserts into the posterior rectus sheath, making it a potential site for herniation.
**Why Each Wrong Option is Incorrect**
* **Option A:** A Littre's hernia is a type of hernia that contains a Meckel's diverticulum. It is not related to the level of the arcuate line or the lateral border of the rectus sheath.
* **Option B:** A Richter's hernia involves only a portion of the intestinal wall, whereas a Spigelian hernia involves the entire thickness of the abdominal wall.
* **Option C:** An indirect inguinal hernia occurs through the deep inguinal ring and is not related to the level of the arcuate line or the lateral border of the rectus sheath.
**Clinical Pearl / High-Yield Fact**
Spigelian hernias are often difficult to diagnose because they can present with non-specific symptoms such as abdominal pain and nausea. They are more common in women and can be associated with previous abdominal surgery or trauma.
**Correct Answer:** C. Spigelian hernia