Portal-Caval venous anastomoses 3.At paraumbilical venous rete paraumbilical vein>periumbilical venous rete> thoracoepigastric and superior epigastric vein >intercostal vein--- superior vena cava Caput medusa 4.retroperitoneal anastomosis the retroperitoneal branches of the colic veins pancreaticoduodenal veins-----the lumbar veins,twigs of colic veins(portal)anastomosing with systemic retroperitoneal veins Intestinal bleeding pancreaticoduodenal veins
Portal- Caval venous anastomoses 3. At paraumbilical venous rete paraumbilical vein→periumbilical venous rete→ thoracoepigastric and superior epigastric vein →intercostal vein--- superior vena cava Caput medusa 4.retroperitoneal anastomosis the retroperitoneal branches of the colic veins pancreaticoduodenal veins -----the lumbar veins, twigs of colic veins (portal) anastomosing with systemic retroperitoneal veins Intestinal bleeding pancreaticoduodenal veins
Portal Hypertension and Portacaval Anastomoses Azygos v. Esophageal v. Interior vena cava (A) Stomach Left Liver- gastric v. Paraumbilical v. Retroperitoneal v. (C) Colic v. Umbilicus (D) Epigastric v. Colon Superior rectal v. Middle rectal v. Inferior (B) Anus Grant's 2.54
Caput Medusae
3 Intrahepatic bile duct Hepatic v. Sublobular vein Sublobular veins Central vein Sinusoid -Sinusoids na Portal triads Hepatic artery proper Perivascular fibrous(Glisson's) Hepatic portal vein Common bile duct
3 Intrahepatic bile duct
> 4 hepatic veins Inferior vena cava Right hepatic vein Left and middle hepatic vein 左后上缘静脉 义肝左静脉 肝中静脉 、左内叶静琳支 左外叶静脉支 尾状叶静脉 Portal vein Bile duct Portal triad Hepatic artery- Grant's 2.59 第三肝门 Gallbladder
➢ 4 hepatic veins