Appendices epiploicae are small pouches of fat that are attached to the outer wall of the large intestine. These structures play a role in providing a protective cushioning effect, as well as aiding in the absorption of water, electrolytes and other nutrients. Synonyms for appendices epiploicae include epiploic appendages, omental appendages, and fatty appendages. These structures are found throughout the colon, but are particularly abundant in the transverse colon and sigmoid colon. Although appendices epiploicae have been largely understudied, recent research has suggested that they may play a role in the development of certain colorectal disorders such as diverticulitis and irritable bowel syndrome.