Which findings on liver imaging commonly suggest portal hypertension?

Which findings on liver imaging commonly suggest portal hypertension?

• A. Isolated hepatic steatosis
• B. Spleen enlargement, varices, ascites
• C. Decreased portal vein caliber
• D. Absence of collateral vessels

Answer: (B)

Portal hypertension shows up on imaging mainly through signs of elevated pressure in the portal venous system and the body’s attempt to form collateral pathways. The most consistent imaging clues are splenomegaly from congestion, the development of collateral vessels such as esophageal or gastric varices, and fluid in the abdomen (ascites) from increased hydrostatic pressure and altered fluid balance. Spleen enlargement occurs because the blocked or high-pressure portal system backs up into the spleen, causing it to swell. Varices are dilated collateral channels that form to bypass the high resistance in the liver, often visible along the esophagus or stomach on imaging. Ascites reflects fluid accumulation due to portal hypertension-driven mechanisms, including increased capillary pressure and altered kidney function from reduced effective circulating volume. Isolated hepatic steatosis doesn’t specifically point to portal hypertension and can be seen in many metabolic conditions. A decreased portal vein caliber is not a characteristic feature of portal hypertension itself and may occur in other contexts. Absence of collateral vessels would argue against portal hypertension, since collateral formation is a compensatory response to high portal pressures.

Portal hypertension shows up on imaging mainly through signs of elevated pressure in the portal venous system and the body’s attempt to form collateral pathways. The most consistent imaging clues are splenomegaly from congestion, the development of collateral vessels such as esophageal or gastric varices, and fluid in the abdomen (ascites) from increased hydrostatic pressure and altered fluid balance.

Spleen enlargement occurs because the blocked or high-pressure portal system backs up into the spleen, causing it to swell. Varices are dilated collateral channels that form to bypass the high resistance in the liver, often visible along the esophagus or stomach on imaging. Ascites reflects fluid accumulation due to portal hypertension-driven mechanisms, including increased capillary pressure and altered kidney function from reduced effective circulating volume.

Isolated hepatic steatosis doesn’t specifically point to portal hypertension and can be seen in many metabolic conditions. A decreased portal vein caliber is not a characteristic feature of portal hypertension itself and may occur in other contexts. Absence of collateral vessels would argue against portal hypertension, since collateral formation is a compensatory response to high portal pressures.