The efferent vessel of hepatocellular carcinoma (HCC) and the mechanism and pathogenesis of the high frequency of intrahepatic metastasis in HCC has not yet been clarified. Three hundred ninety-three resected specimens of HCC were examined for tumor thrombosis in the portal vein and the hepatic vein: 231 tumors < or = 5 cm in diameter were examined for the relationship between mode of tumor spr...

introduction: cerebral vein thrombosis is a rare complication of nephrotic syndrome (ns).we report a known case of ns with hemorrhagic thrombosis. case report: a boy with previous history of ns was admitted with headache and decrease of level of consciousness and his brain images were revealed hemorrhagic thrombosis conclusions: cerebral vein thrombosis must be considered in patients with histo...

Pathophysiology Portal vein obstruction can result from one or several of the following 3 mechanisms: thrombosis, invasion by a malignant tumor (mainly hepatocellular carcinoma) and constriction within a malignant tumor (adenocarcinoma of the pancreas or bile ducts). Compression in the absence of thrombosis, invasion or constriction does not produce portal vein obstruction. Usually, the vein pa...

The mechanism of action of intratumoral ethyl alcohol injection is dehydration and subsequent necrosis, denaturing the structure of the cellular proteins, resulting in complete ablation of the tumor. Pure alcohol also blocks blood flow to the tumor bed resulting in small blood vessel thrombosis that leads to tumor necrosis. Ethyl alcohol injection is also used for the treatment of liver and kid...