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Portal vein thrombosis (PVT) is a vascular disease of the liver that occurs when a blood clot occurs in the hepatic portal vein, which can lead to increased pressure in the portal vein system and reduced blood supply to the liver. The mortality rate is approximately 1 in 10.
A dilated portal vein (diameter of greater than 13 or 15 mm) is a sign of portal hypertension, with a sensitivity estimated at 12.5% or 40%. [18] On Doppler ultrasonography, a slow velocity of <16 cm/s in addition to dilatation in the main portal vein are diagnostic of portal hypertension. [19]
Anorectal varices are collateral submucosal blood vessels dilated by backflow in the veins of the rectum. [1] Typically this occurs due to portal hypertension which shunts venous blood from the portal system through the portosystemic anastomosis present at this site into the systemic venous system.
Pylephlebitis is an uncommon thrombophlebitis of the portal vein or any of its branches (i.e. a portal vein thrombosis) that is caused by infection.It is usually a complication of intra-abdominal sepsis, most often following diverticulitis, perforated appendicitis, or peritonitis.
Trousseau's syndrome is a rare variant of venous thrombosis that is characterized by recurrent, migratory thrombosis in superficial veins and in uncommon sites, such as the chest wall and arms. This syndrome is particularly associated with pancreatic, gastric and lung cancer and Trousseau's syndrome can be an early sign of cancer [ 2 ] [ 3 ...
deep venous thrombosis (needed) increased pain along vein with Valsalva; proximal pressure prevents this Lowenberg's sign: Robert I. Lowenberg: vascular medicine: deep vein thrombosis (needed) immediate pain on inflating blood pressure cuff around calf MacDonald triad: John M. MacDonald: psychiatry: sociopathic personality disorder
Inherited disorders of hypercoagulability may lead to thrombosis of the hepatic vein and Budd–Chiari syndrome. Factor V Leiden is responsible for 8% of cases. [ 2 ] Other less common inherited disorders leading to the condition include factor II mutation (3%), protein C deficiency (5%), protein S deficiency (4%), and antithrombin III ...
It is defined by the occlusion of venous blood vessels by blood clots. There are two major types of VTE: deep-vein thrombosis (DVT) and pulmonary embolism. [10] DVT is often found in the calf, accompanies with the swelling of limbs along the deep vein while pulmonary embolism causes chronic pulmonary hypertension. [11]
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