Portal Vein Collaterals Ultrasound

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Updated: May 04, 2022

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Radiopaedia.org

Radiopaedia is a wiki-based international collaborative educational web resource containing a radiology encyclopedia and imaging case repository.

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FAQs

1

What are portal vein collaterals?

The PGV is the collateral situated between the LGV and the SGV, originating from the middle of the splenic vein (Figures 1,6), and runs posteriorly along the stomach wall. It drains into the EV (81%) and into the left renal vein (23%) in patients with portal hypertension (46).
2

What is a portal collateral pathway?

Portosystemic collateral pathways (also called varices) develop spontaneously via dilatation of pre-existing anastomoses between the portal and systemic venous systems.
3

What is the most common collateral pathway in portal venous hypertension?

The coronary vein, or the left gastric vein, is situated within the lesser omentum and is the most common collateral pathway recruited in portal hypertension secondary to liver cirrhosis, occurring in an estimated 80% of cross sectional imaging studies.
4

What are ultrasound collaterals?

Abdominal collaterals at ultrasound are a frequent finding in cirrhosis. Collaterals are more frequently observed in decompensated patients. They are not protective from the development or growth of oesophageal varices.
5

Is Radiopaedia a reliable source?

Radiopaedia is a huge source for articles and cases related to radiology. The best resource should be the best suited to your needs or a combination of various resources considering your needs for accuracy and for medical images.
6

Is Radiopaedia a journal?

Citation, DOI and article data
Radiology is a peer-reviewed monthly journal published by the Radiological Society of North America (RSNA) and its first edition was issued in September 1923 1. Its current editor is David A Bluemke.
7

Is Radiopaedia free?

Radiopaedia is a rapidly growing open-edit educational radiology resource that has been primarily compiled by radiologists and radiology trainees from across the world. Our mission is to create the best radiology reference, and to make it available for free, forever.
2. Nih.gov

Cavernous transformation of the portal vein - PubMed

https://pubmed.ncbi.nlm.nih.gov/7572494/

Cavernous transformation of the portal vein: patterns of intrahepatic and splanchnic collateral circulation detected with Doppler sonography.

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