Which of the following pathology is consistent with the image?

Which biliary pathology is more prevalent in the Asian population?

A 76-year-old woman presented with vague abdominal pain (persistent for over two years) and a recent (over the previous three months), unwanted 15-pound weight loss. Your diagnosis is?

A 56-year-old woman was admitted to hospital because of asthma attack and right upper quadrant pain. She had no special medical history. The ultrasound exam reveals:

Intrahepatic pneumobilia (air in biliary tree) results from:

Which of the following is a type of cholangiocarcinoma?

A 54-year-old patient whose clinical history includes a long history of smoking presents to the ultrasound department for an abdominal sonogram. His order states that he has a palpable gallbladder and jaundice. Which of the following is most likely?

Obtained during an abdominal ultrasound exam of a 57-year-old patient in the ICU. The patient has no history of gallbladder disease.

Prominent walls of the biliary tree that measure greater than 5 mm is indicative of:

A 41-year-old patient with vague right upper quadrant pain. What is the best diagnosis?