Biliary - Normal Common Bile Duct
Caption
Often, a left lateral position delivers a clear image of the common bile duct (CBD) on its entire length, as is the case in this clip. Notice the normal hyperechoic walls and its small diameter. The CBD inner wall diameter should be < 6 mm in healthy adults, although it can be enlarged in post-cholecystectomy patients. Dr. Felipe Urriola P. Emergency Unit, Puerto Aysen Hospital. Chilean Patagonia.