PMC

Schematic image of omental arteries and “arcades at the greater omentum” in case 2. The to-be-embolized left omental artery directly communicates with an omental artery branching from the right gastroepiploic artery. Note that proximal embolization at the origin of the left omental artery could cause incomplete hemostasis or rebleeding via collateral circulation from right omental arteries. Black arrow: right omental artery, white arrowhead: the tip of the 4.2 Fr guiding catheter positioned in the celiac artery, black arrowhead: right gastroepiploic artery, black curved arrow: left omental artery, star: the occluded point, red dot line: arcade omental branch between right omental artery and left one, a: stomach, b: spleen

Omental nodule. A: Hematoxylin and eosin immunohistochemitry of the omental nodule; B: Cytokeratin-19 immunohistochemistry of the omental nodule (high sensitivity, high specificity); C: Carcinogenic-embryonic antigen immunohistochemistry of the omental nodule (high sensitivity, low specificity); D: Wilm’s Tumor-1 immunohistochemistry of the omental nodule (mesenchymal marker).

Comparison of (A) omental adipocyte PGF_2α release; (B) subcutaneous adipocyte PGF_2α release; (C) omental AKR1B1 mRNA expression; and (D) subcutaneous AKR1B1 mRNA expression in women with low or high omental adipocyte PGF_2α release. Data are presented as mean ± SEM. ^† p < 0.10, *p ≤ 0.05, **p ≤ 0.005, *** p ≤ 0.0001. Expression levels relative to ATP5O mRNA expression. OM: omental; SC: Subcutaneous.

Application of the omental interposition in pancreaticoduodenectomy. A: The pedicled omental interposition was placed in front of the adjacent vessels (hepatic artery, portal vein, and gastroduodenal artery stump) and behind the pancreaticojejunostomy site; B: The right boundary of the omental interposition was the right margin of the inferior vena cava; C: The upper boundary of the omental interposition was the hepatogastric ligament; the omental interposition was fixed to the hepatic portal and hepatogastric ligament with several sutures to prevent postoperative mobilization; D: Postoperative computed tomography images. The omental interposition elevated the hepaticojejunostomy site and filled the potential cavity.