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Chapter 26. Liver & Portal Venous System

Which of the following is not true about the blood supply to the liver?

A. The portal vein is formed by the confluence of the splenic and superior mesenteric veins at the level of the second lumbar vertebra behind the head of the pancreas.

B. The common hepatic artery typically arises from the superior mesenteric artery, ascends in the hepatoduodenal ligament, and gives rise to the right gastric, gastroduodenal, and proper hepatic arteries.

C. In the hepatoduodenal ligament, the common bile duct lies anteriorly and slightly lateral to the portal vein.

D. A replaced right hepatic artery typically arises from the superior mesenteric artery and courses posteriorly and to the right of the common bile duct within the porta hepatis.

E. A replaced left hepatic artery typically arises from the left gastric artery.

The correct answer is B. The common hepatic artery typically arises from the superior mesenteric artery, ascends in the hepatoduodenal ligament, and gives rise to the right gastric, gastroduodenal, and proper hepatic arteries.

The Child-Pugh classification of functional status in liver disease does not include

A. Ascites

B. Serum bilirubin

C. Albumin

D. Serum creatinine

E. Encephalopathy

The correct answer is D. Serum creatinine

A grade III liver injury includes

A. Subcapsular, nonexpanding hematoma occupying 10%-50% of surface area

B. Laceration greater than 3 cm deep into the parenchyma

C. Retrohepatic inferior vena cava vascular injury

D. Parenchymal disruption involving > 75% of hepatic lobe

E. Hepatic avulsion

The correct answer is B. Laceration greater than 3 cm deep into the parenchyma

Which of the following can be a posthepatic cause of portal hypertension?

A. Wilson disease

B. Hemochromatosis

C. Portal vein thrombosis

D. Budd-Chiari syndrome

E. Schistosomiasis

The correct answer is D. Budd-Chiari syndrome

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