Portal Vein Compression and Portal Vein Thrombosis

portal vein compression, subsequently leads to

portal vein obstruction

portal vein compression is most commonly caused by

tumors from adjacent organs or lymphadenopathy

portal vein thrombosis is

the development of clot within the portal vein

portal vein thrombosis is seen in conditions such as

HCC, portal hypertension, pancreatitis, cholecystitis, pregnancy, oral contraceptive use, and surgery

thrombus can completely occlude the

portal vein

in the case of an occluded portal vein,

the development of collaterals within the portal vein region will occur

cavernous transformation of the portal vein

the mesh of tiny blood vessels in the area of the portal vein that tries to shunt blood around the clot

pateints may complain of

abdominal pain, low-grade fever, leukocytosis, hypovolemia, elevated liver function tests, and nausea and vomiting

initial sonographic evaluation of portal vein thrombus may be difficult because

clots can be isoechoic to the surrounding circulating blood

with time thrombus will be

more echogenic and may be more noticeable within the portal vein

the cavernous transformation of the portal vein will appear

as wormlike or serpiginous vessels within the region of the portal vein

portal occlusion can also be the result of

tumor invasion within the portal vein

with cavernous transformation of the portal vein, you will find

multiple serpiginous or tortuous vessels in the porta hepatis

clinical findings or portal vein thrombosis

1. abdominal pain

2. elevated liver function tests

3. hypovolemia

4. leukocytosis

5. low-grade fever

6. nausea

7. vomiting

sonographic findings of findings of portal vein thrombosis

1. echogenic thrombus within the portal vein

2. cavernous transformation of the portal veins will appear as wormlike or serpiginous vessels within the region of the portal vein