Dilatation of the intrahepatic bile ducts and the common bile duct is more serious.
Choledochal dilatation can be caused by diseases such as choledochal stone and choledochal carcinoma, which obstruct the lower end of the choledochal duct, leading to poor bile excretion and increased pressure in the bile ducts, causing choledochal dilatation. Patients may present with symptoms such as abdominal pain, fever, jaundice, and an upper abdominal mass.
Intrahepatic bile duct dilatation can be caused by obstruction factors of the common bile duct, cystic dilatation of the intrahepatic bile duct, intrahepatic cholangiocarcinoma, intrahepatic bile duct stones, and compression of tumors around the bile ducts, and can cause abdominal pain, jaundice, fever, and other symptoms, which are also more serious.
If timely treatment is not carried out, it may cause septic cholangitis, liver failure, further progression of the tumor, etc., which seriously affects the patient’s health as well as the quality of life, and therefore, is more serious.
Patients with dilated intrahepatic bile ducts and common bile ducts should improve the relevant examinations under the guidance of doctors and undergo timely surgical treatment.