Chronic cholangitis

Most are the result of the legacy of acute cholangitis. After non-surgical treatment of acute cholangitis, the acute inflammation was controlled, but the primary cause of the bile ducts (such as bile duct stones inside and outside the liver, biliary ascariasis, or Odie sphincter stenosis, etc.) was changed, and the inflammation in the bile ducts became chronic. Wall thickening. Due to obstructive lesions, the bile ducts often dilate, reaching a diameter of 2 to 3 cm, or even 5 cm. When the bile duct obstruction becomes complete or the bacterial infection becomes worse, it can cause an acute inflammation. Multiple repeated acute attacks will further aggravate the chronic inflammation of the bile duct, especially in the lower bile duct oddi sphincter papillae and the branches of the intrahepatic bile duct. After repeated repeated acute attacks, it can often cause fibrous scar tissue at the lower end of the bile duct. Hyperplasia and stenosis, as well as the narrow environment of the branches of the intrahepatic bile ducts, have further exacerbated the degree of obstruction of the bile ducts inside and outside the liver.