Biopsy - biliary tract

定义

A biliary tract biopsy is the removal of small amounts of cells and fluids from the duodenum, 胆管, 胰腺, or pancreatic duct. The sample is examined under a microscope.

选择的名字

Cytology analysis - biliary tract; Biliary tract biopsy

How the Test is Performed

A sample for a biliary tract biopsy can be obtained in different ways.

A needle biopsy can be done if you have a well-defined tumor.

• The biopsy site is cleaned.
• A thin needle is inserted into the area to be tested, and a sample of cells and fluid are removed.
• The needle is then removed.
• Pressure is put on the area to stop any bleeding. The site will be covered with a bandage.

If you have a narrowing or blockage of the bile or pancreatic ducts, a sample can be taken during procedures such as:

• Endoscopic retrograde cholangiopancreatography (ERCP)
• Percutaneous transhepatic cholangiogram (PTCA)

How to Prepare for the Test

You may not be able to eat or drink 8 to 12 hours or more before the test. Your health care provider will tell you ahead of time what you need to do.

Make sure you have someone to drive you home.

How the Test will Feel

How the test will feel depends on the type of procedure used to remove the biopsy sample. With a needle biopsy, you may feel a sting as the needle is inserted. Some people feel a cramping or pinching feeling during the procedure.

Medicines that stop pain and help you relax are commonly used for biliary tract biopsy methods.

Why the Test is Performed

A biliary tract biopsy can determine if a tumor started in the liver or spread from another location. It also can determine if the tumor is cancerous.

This test may be done:

• After a physical exam, x射线, 核磁共振成像, CT扫描, or 超声波 shows abnormal growths in your biliary tract
• To test for diseases or infection

正常的结果

A normal result means there are no signs of cancer, disease, or infection in the biopsy sample.

What Abnormal Results Mean

Abnormal results may be due to:

• Cancer of the 胆管 (cholangiocarcinoma)
• Cysts in the liver
• 肝癌
• 胰腺癌
• Swelling and scarring of the 胆管 (primary sclerosing cholangitis)

风险

风险 depend on how the biopsy sample was taken.

风险 may include:

• Bleeding at the biopsy site
• 感染

参考文献

Chernecky CC, Berger BJ. Biopsy, site-specific-specimen. In: Chernecky CC, Berger BJ, eds. Laboratory Tests and Diagnostic Procedures. 6日艾德. St Louis, MO: Elsevier Saunders; 2013:199-201.

Gibson RN, Sutherland TR. The biliary system. In: Adam A, Dixon AK, Gillard JH, Schaefer-Prokop CM, eds. 格兰杰 & Allison's Diagnostic Radiology. 7日艾德. Philadelphia, PA: Elsevier; 2021:chap 24.

怀亚特·吉，豪克·B. Liver, biliary system and 胰腺. In: Cross SS, ed. Underwood's Pathology. 7日艾德. Philadelphia, PA: Elsevier; 2019:chap 16.