Portal hypertension in biliary cirrhosis most commonly leads to which complication?

• A. Hepatocellular carcinoma
• B. Esophageal varices
• C. Pulmonary edema
• D. Renal failure

Answer: (B)

Portal hypertension drives the formation of collateral veins that bridge the portal and systemic circulations. The esophagus contains a rich network of submucosal veins that connect the portal system (via the left gastric vein) to systemic veins. When portal pressure rises, these veins dilate, creating esophageal varices. These varices are especially prone to rupture because of their thin walls, leading to significant GI bleeding—the hallmark clinical consequence of portal hypertension in cirrhosis, including biliary cirrhosis.

Hepatocellular carcinoma is a long-term risk in cirrhosis but not a direct result of portal hypertension itself. Pulmonary edema and renal failure can occur in advanced liver disease, but they are not the classic, most common portal-hypertension–related complication like variceal bleeding.