Question:

Which of the following answer choices is not considered as portosystemic collateral vessels?
1. Esophageal collateral veins
2. Paraesophageal collateral veins
3. Coronary veins
4. Pancreaticoduodenal collateral veins
5. Splenorenal shunt





Answer:

The correct answer for the question "Which of the following answer choices is not considered as portosystemic collateral vessels?" is:

4. Pancreaticoduodenal collateral veins



Explanation
1. Esophageal collateral veins are considered as portosystemic collateral vessels. [Numerous portosystemic collateral veins can develop, including esophageal, paraesophageal, coronary gastric, inferior phrenic, paraumbilical, abdominal wall, splenorenal, gastrorenal, retrocaval, and mesocaval collateral pathways.]

2. Paraesophageal collateral veins are considered as portosystemic collateral vessels.

3. Coronary veins are considered as portosystemic collateral vessels.

4. Pancreaticoduodenal collateral veins are mesenteric veins and drain into the portal venous system.

5. Splenorenal shunt is considered as portosystemic collateral vessel.



From the manuscript:
Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension
Radiology Case. 2013 Jul; 7(7):32-36


This article belongs to the Interventional section.




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From the manuscript

Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension

Free full text article: Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension

Abstract
We present a case of spontaneous portoazygos shunt in a patient with liver cirrhosis and portal hypertension. The shunt was incidentally detected by abdominal magnetic resonance imaging for routine evaluation of liver cirrhosis. Multiplanar reconstruction images demonstrated the portal vein communicating with the azygos vein that was dilated and tortuous along its course to the mediastinum. Although there has been a case of congenital portoazygos shunt reported in a neonate with multiple congenital anomalies, to the best of our knowledge, this is the first case of spontaneous portoazygos shunt developed in an adult with portal hypertension.






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