Bile duct embolus的用法和样例：
- Surgical Treatment of Primary Hepatocellular Carcinoma Complicated with Bile Duct Embolus
- Diagnosis experience of primary liver carcinoma complicated with bile duct embolus
- Treatment of iatrogenic bile duct injury.
- In addition, bile duct antrum but outspread.
- The bile duct was showed truncate or strictured.