Clinical considerations and red flags for incidental bile duct dilation
| Clinical signs of bile obstruction |
| Jaundice |
| Steatorrhea |
| Acholic stools |
| Dark urine |
| Pruritus |
| Weight loss (concern for malignancy) |
| Fever, right upper quadrant abdominal pain, and jaundice (concern for ascending cholangitis) |
| Relevant findings on laboratory testing |
Elevation of any of the following:
|
| Abnormal imaging findings |
| Concurrently dilated pancreatic duct (“double-duct” sign) |
| Intraductal stone or lesion |
| Intrahepatic duct dilation |
| Moderate to severe extrahepatic duct dilation (≥ 10 mm) |
| Abrupt cutoff in common bile duct dilation |
| New or progressive dilation compared with prior imaging |