**Core Concept**
Appendices epiploicae are small, fatty pedunculated appendages that project from the serosal surface of the large intestine, particularly the colon. They are thought to be vestigial remnants of the embryonic midgut.

**Why the Correct Answer is Right**
Appendices epiploicae are a normal anatomical variant that can be found in up to 90% of individuals. They are usually small, ranging from 1-10 cm in size, and are composed of a core of adipose tissue covered by a layer of peritoneum. They are most commonly found on the taeniae coli of the colon, particularly on the sigmoid colon and rectum.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because appendices epiploicae are not a feature of the small intestine, but rather the large intestine.
**Option B:** This option is incorrect because appendices epiploicae are not a type of tumor or neoplasm, but rather a normal anatomical variant.
**Option C:** This option is incorrect because appendices epiploicae are not a feature of the appendix, but rather a separate structure that projects from the serosal surface of the large intestine.

**Clinical Pearl / High-Yield Fact**
It's worth noting that appendices epiploicae can be a source of pain or discomfort, particularly if they become inflamed or torsed. This can be a classic presentation of acute appendicitis, but in reality, the inflamed appendage is usually the actual appendix, not the epiploic appendage.

**Correct Answer: D**