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A 53-year-old woman presents complaining of fatigue over the past 6 months. During this time, she has also developed pruritus and lost 4 pounds. She is not sexually active, and her past medical history is significant only for Sjögren syndrome.

On physical examination, she is afebrile and has mildly icteric sclera. There are excoriations noted on all four extremities and trunk and back. The liver edge is smooth and non-tender and measures 9 cm at the midclavicular line. There is no ascites, splenomegaly, or peripheral edema.

Laboratory results reveal a normal complete blood count, normal electrolytes, and liver function tests with an alkaline phosphatase of 260 U/L (normal, <110 U/L), total bilirubin of 3.1 mg/dL, and normal transaminase levels.

Which of the following is the most likely diagnosis?

A. Acute cholecystitis
B. Acute hepatitis A infection
C. Bacterial cholangitis
D. Primary biliary cirrhosis
E. Primary sclerosing cholangitis
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2 Answers

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D. Primary biliary cirrhosis
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Primary biliary cirrosis