Appendices epiploicae

Appendices epiploicae are small pouches of fat-filled, serosa-covered structures attached to the external surface of the colon. They are anatomically distinctive and can be found along the entire length of the colon, with the exception of the rectum.

Anatomy

The appendices epiploicae are typically 0.5 to 5 cm in length and are most commonly found on the transverse colon and sigmoid colon. They are attached to the colon by a vascular stalk and are covered by a layer of serosa, the same membrane that covers the rest of the colon. The inside of these appendices is filled with adipose tissue.

Function

The exact function of the appendices epiploicae is not fully understood. Some theories suggest that they may play a role in the absorption of excess fluid in the colon, while others propose that they may serve a protective function, cushioning the colon against physical damage.

Clinical significance

In rare cases, the appendices epiploicae can become inflamed or twisted, a condition known as appendagitis. This can cause severe abdominal pain and may require surgical intervention. Appendagitis is often mistaken for appendicitis due to the similarity in symptoms, but the two conditions are distinct and require different treatments.

See also

• Colon (anatomy)
• Appendagitis
• Appendicitis