Patent Portal Vein with Varices and RUQ Pain in Portal Vein Stent Patient

Understanding the Clinical Scenario

The presence of patent portal, SMV, and splenic veins with varices indicates that the portal venous system is open but under pressure, creating collateral pathways through the gastric and splenic regions, according to Praxis Medical Insights 1
Varices themselves are typically asymptomatic unless they bleed or cause mass effect, as stated by the Journal of the American College of Radiology 2, 3

Varices are pressure-release mechanisms that develop as portosystemic shunts to decompress the portal venous system, and they do not typically cause pain unless there is acute bleeding, thrombosis, or rupture, according to the Journal of the American College of Radiology 4
The location of splenic and gastric varices is anatomically inconsistent with RUQ pain, as they are located in the left upper quadrant and epigastrium, according to the Journal of the American College of Radiology 5

Obtain cross-sectional imaging with CT or MRI with portal venous phase contrast to assess stent patency, identify stenosis, evaluate hepatic congestion, and measure ascites volume, as recommended by Praxis Medical Insights 6
Measure pressure gradients if interventional evaluation is warranted—a portosystemic gradient >13 mmHg correlates with increased complications, according to the Journal of the American College of Radiology 4

Portal vein recanalization may be necessary if there is progression to occlusion, with technical success rates of 98% when performed early, as reported by the Journal of the American College of Radiology 2, 3
Partial splenic embolization can reduce portal flow and pressure, potentially alleviating hepatic congestion, according to the Journal of the American College of Radiology 5, 4