Gastroenterology Quiz #10: Biliary Anatomy and Pathology

1. A 45-year-old woman presents with right upper quadrant pain, jaundice, and clay-colored stools. Laboratory tests reveal elevated alkaline phosphatase and direct bilirubin levels. Ultrasound of the abdomen shows dilated intrahepatic and extrahepatic bile ducts. Which of the following is the most likely location of obstruction in this patient? 

Question 1 of 5

2. A 35-year-old man presents with severe right upper quadrant pain radiating to his back, fever, and jaundice. His serum amylase and lipase levels are elevated. Magnetic resonance cholangiopancreatography (MRCP) shows a stone at the junction of the common bile duct and pancreatic duct. Which of the following anatomical structures is most directly involved in the pathogenesis of this patient's condition? 

Question 2 of 5

3. During a laparoscopic cholecystectomy, a surgeon accidentally lacerates a structure anterior to the common bile duct. Which of the following structures is most likely injured? 

Question 3 of 5

4. A 50-year-old woman with a history of chronic alcohol abuse presents with dark urine, pruritus, and jaundice. Liver function tests reveal markedly elevated conjugated bilirubin and alkaline phosphatase. A liver biopsy shows destruction of intrahepatic bile ducts. Which of the following is the most likely diagnosis?

Question 4 of 5

5. A 60-year-old man presents with jaundice, clay-colored stools, and unintended weight loss. Imaging reveals a mass at the head of the pancreas compressing the common bile duct. Which of the following is a potential complication of this condition? 

Question 5 of 5


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