A new clinical classification of congenital biliary dilatation – HUAXI CBD classification

Abstract Background: Current biliary dilatation (BD) classifications are complex and based on cases including secondary BD, leading to unclear distinctions. Notably, congenital and secondary BD differ in etiology, symptoms, and prognosis. Objective: To propose a more concise and more suitable classification of congenital biliary dilatation (CBD), and exploring the feasibility and effectiveness of this classification in diagnosis and treatment. Methods: Based on the preoperative imaging data of patients with CBD admitted to the Department of Pediatric Surgery of West China