**Core Concept:** Epiplocele is a hernia of the peritoneum through a defect in the internal abdominal wall, most commonly in the epigastrium. The content of an epiplocele is typically the omentum, which is a fold of the peritoneum lined with the mucous membrane of the gastrointestinal tract.

**Why the Correct Answer is Right:** An epiplocele occurs when the peritoneum and omentum herniate through a defect in the internal abdominal wall, usually in the epigastric region. The omentum, being a fold of the peritoneum, is lined with the mucous membrane of the gastrointestinal tract, which makes it the correct content of an epiplocele.

**Why Each Wrong Option is Incorrect:**

A. **Option A (Peritoneum and omentum):** While the epiplocele itself consists of the peritoneum and omentum, these components are not the content of the epiplocele, but rather the structure containing the omentum.

B. **Option B (Intestine):** The intestine is not the content of an epiplocele, as the omentum, not the intestine, is the lining of the gastrointestinal tract and makes up the herniated portion.

C. **Option C (Peritoneum):** Although the epiplocele consists of peritoneum, the content of the epiplocele is the omentum, which is a fold of the peritoneum.

D. **Option D (Adipose tissue):** Adipose tissue is a component of the omentum but not the content of an epiplocele. The correct content is the omentum, lined by the mucous membrane of the gastrointestinal tract.

**Clinical Pearl:** Understanding the correct content of an epiplocele is crucial, as it helps differentiate it from other hernias and guides surgical management. The presence of omentum in an epiplocele indicates that the hernia is an epiplocele and not a true hernia, which would typically contain other abdominal contents.