Diagnosis and Treatment of Non-Foreign Body-Associated Secondary Dilatation of The Common Bile Duct

Objective: To explore the etiology, diagnosis and treatment of non-foreign body secondary choledochectasis. Methods: The clinical data of 162 cases admitted from January 1994 to December 2021 were retrospectively studied. Results: The causes and diagnosis of non-foreign body secondary dilatation were accurately identified by careful history, physical examination, imaging and laboratory tests into 10 categories: inflammation; sphincter of Oddi dysfunction; post gastric bariatric surgery; compression; compensation; Bile duct injury; duodenal disease; other factors. Conclusion: The etiology of non-foreign body secondary choledochectasis is complex. Effective treatment should be selected according to different etiologies.