The epiploic appendices (or appendices epiploicae, or epiploic appendages, or appendix epiploica, or omental appendices) are small pouches of the peritoneum filled with fat and situated along the colon, but are absent in the rectum.
They are chiefly appended to the transverse and sigmoid parts of the colon, however, their function is unknown. [Source: Wikipedia 
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