Fig. 30.

A 23-year-old male patient presented with well-localized, severe right lower quadrant pain. a Grayscale US showed a non-compressible, oval-shaped, hyperechoic lesion (arrowheads) surrounded by a hypoechoic rim and increased echogenicity in the adjacent fat planes. b Axial plane postcontrast abdominal CT image demonstrated an ovoid lesion with internal fat density, peripheral high-density rim, and perilesional inflammatory stranding (arrows) adjacent to the sigmoid colon. Imaging findings were found to be compatible with epiploic appendagitis. The patient responded well to the supportive medical treatment