Patterns of peritoneal spread of tumor in the abdomen and pelvis

Table 1 Supramesocolic ligaments, their organ association and identifying vasculature

Left hepatic lobe to the stomach’s lesser curvature	Left gastric artery and vein	Landmark vasculature
Gastrohepatic ligament
Hepatoduodenal ligament	Hepatic hilum to the lesser curvature of the stomach	Extrahepatic bile ducts, hepatic artery, and portal vein
Gastrocolic ligament	Greature curvature of the stomach to the transverse colon	Right and left gastroepiploic arteries
Greater omentum	From transverse colon covering the small bowel like an apron	Epliploic and branches of the gastroepiploic arteries
Gastrosplenic ligament	From fundus and proximal body of stomach to splenic hilum	Short gastric and left gastroepliploic arteries
Splenorenal ligament	Connects spleen to tail of pancreas	Distal splenic artery or proximal splenic vein

Table 2 Inframesocolic compartment, organ association and their landmark vasculature

Ligament	Organ association	Landmark vasculature
Root of mesentery	Transverse duodenum to right iliac fossa	Superior mesenteric and ileocolic artery and veins
Jejunal mesentery	Root of mesentery to jejunal bowel	Jejunal artery and vein
Ileal mesentery	Root of mesentery to ileal bowel	Ileal artery and veins
Ascending mesocolon	Root of mesentery to ascending colon	Right colic and cecal artery and vein
Descending mesocolon	Base of transverse mesocolon to descending colon	Left colic artery and vein
Sigmoid mesocolon	Root of sigmoid mesocolon	Sigmoid and superior hemorrhoidal artery and vein