Trombosi della vena porta significa uno stop del flusso ematico verso il fegato che riconosce delle cause diverse che determinano una coagulazione massiva allinterno del sistema portalre. Vena portae definition of vena portae by medical dictionary. Preduodenal portal veina cause of intestinal obstruction. Pdf polysplenia syndrome with preduodenal portal vein. Trombosi della vena porta, causa di ascite improvvisa. Congenital and acquired anomalies of the portal venous system. The anatomy of the porta hepatis in patients with preduodenal. Where obstruction by a preduodenal portal vein is diagnosed, a duodenoduodenostomy is the recommended treatment. Obstruccion del duodeno por una vena porta preduodenal en situs inversus. Roentgenogram oftile chest showed that tile manifestations of coilgestion were complicated by infiltration. The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver. Appunti per lesame di anatomia patologica del professor bufo sullocclusione della vena porta.
A duodenal diaphragm and other more common causes of duodenal obstruction should also be excluded in these patients. Recoger nutrientes absorbidos principalmente del intestino delgado y gran parte. The aims of this study were to demonstrate the anatomic relationship between portal vein pv branches and hepatic ducts in the porta hepatis in individuals with preduodenal portal vein pdpv and to examine the validity of portoenterostomy kasai procedure for patients with biliary atresia ba and pdpv. A tips procedure involves creating a pathway through the liver that connects the portal vein the vein that carries blood from the digestive organs to the liver to a hepatic vein one of three veins that carry blood from the liver to the heart. It originates behind the neck of the pancreas where it is classically formed by the confluence of the superior mesenteric and splenic veins the portovenous confluence, and also receives blood from the inferior mesenteric, gastric, and cystic veins. In 54% of the cases of preduodenal portal vein ppv was combined with high intestinal obstruction and in one half of these cases ppv was considered obstructive. Preduodenal portal vein causing duodenal obstruction. A potential laparoscopic cholecystectomy nightmare article pdf available in south african journal of surgery. Although the polysplenia syndrome with preduodenal portal vein pdpv in adult is rarely encountered, surgeons need to understand the course of the portal vein and exercise caution in approaching the biliary tract. Three cases of preduodenal portal vein pdpv observed in newborns and young infants are reported. Preduodenal portal vein causing duodenal obstruction associated with pneumatosis cystoides. Stati ipercoagulativi sindrome da antifosfolipidi mutazioni del fattore v di leiden emoglobinuria parossistica notturna mutazione c20210a della protrombina malattie mieloproliferative contraccettivi orali. It is much more likely to be part of an anomaly complex. In tali condizioni i dispositivi anastomotici, dilatandosi talora anche notevolmente, costituiscono vie secondarie attraverso le quali il sangue refluo dallapparato digerente puo.
Only about 80 cases of pre duodenal protal vein pdpv, a rare congenital anomaly of portal vein development that was first described by knight in 1921, have been reported till date. Download fulltext pdf download fulltext pdf preduodenal portal vein. Polysplenia syndrome with preduodenal portal vein detected in. Preduodenal portal vein causing duodenal obstruction associated with pneumatosis cystoides intestinalis. The upper abdomen became additionally distended with ascitic fluid.
Approximately 75% of total liver blood flow is through the portal vein, with the remainder coming from the hepatic. Anastomosi fra sistema della vena porta e sistema venoso. Polysplenia syndrome with agenesis of the dorsal pancreas and. Note the portal vein traversing posterior to the first part of duodenum to enter the porta hepatis. Knowledge of the normal anatomy, most frequent variants, and congenital and acquired anomalies of the portal venous system is of great importance for liver surgery and interventional procedures such as creation of transjugular intrahepatic portosystemic shunts. Congenital preduodenal portal vein 95 roenigenologic findings. This blood contains nutrients and toxins extracted from digested contents. Polysplenia syndrome with preduodenal vein was diagnosed preoperatively by computed tomography ct and surgery was done safely. The portal vein usually measures approximately 8 cm in length in adults with a maximum diameter of mm.
Preduodenal portal vein can be associated with duodenal atresia, stenosis, annular pancreas and malrotation. The clinicalroentgenologic correlation of the following features should suggest preduodenal portal vein. Polysplenia syndrome with agenesis of the dorsal pancreas. Duncan, obstruction of the duodenum university of the. If the preduodenal portal vein causes the obstruction, the surgical procedure can be either an endtoend duodenoduodenostomy placing the portal vein in its normal dorsal position, or a bypass procedure, e. First described by knight in 1921, the preduodenal portal vein is a congenital anomaly that involves the portal vein passing in front of the duodenum. Nov 07, 2008 polysplenia syndrome with preduodenal vein was diagnosed preoperatively by computed tomography ct and surgery was done safely. Although the polysplenia syndrome with preduodenal portal vein pdpv in adult is rarely encountered, surgeons need to understand the course of the portal vein and exercise caution in approaching.