Clinical and pathological features of cholestatic liver injury / 临床肝胆病杂志

ABSTRACT

Major causes of cholestasis include abnormal bile metabolism, obstructed bile flow and regurgitation, and bile duct injury and obstruction. Abnormal bile metabolism is mainly caused by gene abnormality, while obstructed bile flow is often caused by bile duct injury or occlusion due to cholangitis. Abnormal bile metabolism is the most common cause of progressive familial intrahepatic cholestasis (PFIC), while autoimmune cholangitis is the major cause of bile duct injury. Both congenital/autoimmune bile duct injury and secondary/acquired ductular reaction had relatively specific histopathological changes, and a confirmed diagnosis needs a comprehensive analysis based on clinical, pathological, imaging, immunological, and genetic examinations. This article elaborates on the research advances in the pathomorphology of autoimmune bile duct injury and PFIC and introduces the similar lesions, in order to provide a reference for the clinical diagnosis of bile duct injury and cholestatic liver diseases.