case_images: PMC11785352_01
case_images: Ultrasonography of the abdomen showing multiple calculi in the gallbladder and a well-defined heteroechoic cystic area with thick walls and a few echogenic foci in the region of the omentum
case_images: cureus-0017-00000076743-i01.jpg
case_images: PMC11785352_01_cureus-0017-00000076743-i01.jpg
case_images: FIG1
case_images: Ultrasonography of the abdomen revealed a well-defined heteroechoic lesion (3.5x2.5 cm) in the region of the omentum, showing cystic areas with thick walls, a few echogenic foci, and multiple calculi in the gallbladder (Figure 1).
case_images: Computed tomography of the abdomen showing foci of calcification adjacent to the transverse colon, suggestive of a complex omental cyst or omental infarct. CT, computed tomography
case_images: cureus-0017-00000076743-i02.jpg
case_images: PMC11785352_01_cureus-0017-00000076743-i02.jpg
case_images: FIG2
case_images: The contrast-enhanced computed tomography (CT) scan of the abdomen showed a hypodense lesion measuring 3.2x2.4x2.4 cm, with foci of calcification adjacent to the transverse colon, suggestive of a complex omental cyst or omental infarct (Figure 2).
case_images: Intraoperative images of ruptured cyst containing pus and braided sutures
case_images: cureus-0017-00000076743-i03.jpg
case_images: PMC11785352_01_cureus-0017-00000076743-i03.jpg
case_images: FIG3
case_images: While dissecting the omental cyst from the transverse colon and omentum, the cyst wall inadvertently ruptured, and pus-like material, along with a bundle of braided sutures, was seen coming out of the cyst (Figure 3 and Figure 4).
case_images: Cut section of the excised cyst with a calcified wall (a) and non-absorbable suture material (b)
case_images: cureus-0017-00000076743-i04.jpg
case_images: PMC11785352_01_cureus-0017-00000076743-i04.jpg
case_images: FIG4
case_images: While dissecting the omental cyst from the transverse colon and omentum, the cyst wall inadvertently ruptured, and pus-like material, along with a bundle of braided sutures, was seen coming out of the cyst (Figure 3 and Figure 4).
case_images: Histopathology showing inflammatory infiltrates (a), giant cells and granuloma (b), and cyst with foreign body (c)
case_images: cureus-0017-00000076743-i05.jpg
case_images: PMC11785352_01_cureus-0017-00000076743-i05.jpg
case_images: FIG5
case_images: The histopathology of the specimen showed chronic inflammatory changes and inflammatory granulation tissue with fat necrosis (5.2x2.5 cm) (Figure 5), along with foreign body giant cell granuloma and foamy macrophages.