## **Core Concept**
The term "left-sided appendicitis" refers to a clinical condition that mimics appendicitis but occurs on the left side of the abdomen. This condition is often associated with a specific type of intestinal obstruction.

## **Why the Correct Answer is Right**
The correct answer, **C. Diverticulitis**, is right because diverticulitis, particularly when it involves the sigmoid colon, can present with symptoms similar to appendicitis but on the left side. Diverticulitis is an inflammation of diverticula, which are small pouches in the wall of the colon. When these pouches become inflamed, it can lead to symptoms such as abdominal pain, fever, and changes in bowel habits, which can be mistaken for appendicitis. The sigmoid colon is commonly affected, which is located on the left side of the abdomen.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is blank and does not provide a viable choice for consideration.
- **Option B:** This option is also blank and does not offer a valid alternative.
- **Option D:** This option is blank as well, providing no relevant information.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that while appendicitis typically presents on the right lower quadrant due to the location of the appendix, conditions like diverticulitis can cause similar symptoms but on the left side, earning the misnomer "left-sided appendicitis." This highlights the importance of considering differential diagnoses based on the location of pain and other clinical findings.

## **Correct Answer:** **C. Diverticulitis**