Esophageal varices are most directly caused by which condition?

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Multiple Choice

Esophageal varices are most directly caused by which condition?

Explanation:
Portal hypertension is the direct driver of esophageal varices. When the portal venous system has elevated pressure—often because the liver is scarred or obstructed—blood seeks alternate routes to return to the heart. This creates collateral pathways, including veins in the lower esophagus, which become dilated and fragile vessels known as varices. Their dilation makes them prone to rupture and life-threatening bleeding. While liver disease and heavy alcohol use can lead to portal hypertension, they are not the immediate cause of varices themselves. Gastric reflux does not cause esophageal varices.

Portal hypertension is the direct driver of esophageal varices. When the portal venous system has elevated pressure—often because the liver is scarred or obstructed—blood seeks alternate routes to return to the heart. This creates collateral pathways, including veins in the lower esophagus, which become dilated and fragile vessels known as varices. Their dilation makes them prone to rupture and life-threatening bleeding. While liver disease and heavy alcohol use can lead to portal hypertension, they are not the immediate cause of varices themselves. Gastric reflux does not cause esophageal varices.

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