What are the common causes of common bile duct stricture?

Common bile duct stones, common bile duct cysts, common bile duct infarction, inflammatory strictures of the bile duct, tumors of the lower common bile duct. In 52 patients, biopsies and brushing cytology were performed, but biopsies were not continued due to perforation, and only brushing cytology was performed in the remaining 42 patients with serial examinations. Characteristics of 94 patients:

There were 94 patients with bile duct stenosis, male = 54 40, average age 51 years (42 years old 70 years), 52 cases of forceps biopsy + brush cell examination, 42 cases of brush cytology only, bile duct stricture: benign and evil (30 64).

The rest, I really don't know.

1.Physiological stenosis.

2.Pathological stricture: 1. Pancreatitis (or cancer) compression, 2. Bile duct infection (cancer), 3. Tumor (benign cyst and malignant tumor).

It is recommended to check because it is meaningless to discuss the proportion of patients apart, and if it is an academic discussion, it is a different matter, and these basic clinical data are also superficial and should not have reached that level.

Benign stenure of the common bile duct is easier to diagnose, and the incidence of malignant stenosis is now relatively high, the first thing to consider is common bile duct cancer. First of all, your question is that there is no comparison, so you can't.

The most common is stones.

The second is the stricture caused by inflammation.

Pancreatic cancer compresses, physiological, inflammatory, and malignant in much more proportions.

Diet is not careful

Exercise less

Common causes of distal common bile duct obstruction include biliary stones, pancreatic head cancer, ampullary cancer, and common bile duct stenosis caused by various reasons.

There are 11 main types of common bile duct dilation:

common bile duct stones;

benign and malignant tumors of bile ducts;

pancreatic head cancer; periampullary carcinoma of the duodenum;

acute and chronic pancreatitis;

enlarged lymph nodes in the hilar area compress the common bile duct;

biliary roundworms; acute purulent cholangitis;

congenital cystic dilation of the common bile duct;

compensatory dilation after gallbladder removal or biliary surgery;

Senile physiological dilation.

Benign biliary strictures** are the most common direct or indirect biliary tract injuries during cholecystectomy, and the incidence of biliary tract injuries is lower with open cholecystectomy, while laparoscopic cholecystectomy does not appear to reduce the incidence of biliary complications but tends to increase.

Surgery-induced bile duct strictures are mostly fibrous cicatricial strictures at the site of bile duct injury, and occasionally other causes of stenosis. Liver transplantation is also a major cause of postoperative biliary strictures. Biliary reconstruction is required after liver transplantation, and strictures often occur at the bile duct anastomosis.

Chronic pancreatitis is one of the causes of benign bile duct stricture, and due to the anatomical particularity of the distal bile and pancreatic ducts, bile and pancreatic diseases affect each other. Chronic pancreatitis, especially the chronic inflammation of the pancreatic head, often affects the terminal bile ducts, causing fibrosis and narrowing of the bile duct wall, and can also be caused by the enlarged pancreatic head directly compressing the common bile duct and causing bile duct stricture.

Some vascular diseases such as atherosclerosis, polyarteritis nodosa, etc., which invade the hepatic arteries or hepatic artery thrombosis after liver transplantation, may lead to bile duct blood supply disorders and bile duct narrowing in the ischemic area. In addition, epigastric trauma, sclerosing cholangitis, and Miriz syndrome can also cause bile duct strictures.