Bile duct Cancer (cholangiocarcinoma) Diagnosis

Bile duct Cancer (cholangiocarcinoma) Diagnosis include Laboratory examination, B ultrasonic, PTC, ERCP, Angiography, Cytology.

1. Laboratory examination: mainly for obstructive jaundice of hepatic dysfunction, such as increased bilirubin and alkaline phosphatase, etc..

2. B ultrasonic examination: careful repeated ultrasonography B shows the expansion of the bile duct, the site of obstruction, and even tumors. Cholangiocarcinoma, the ultrasound can be positive as the mass type, cord-like processes shaped pattern and thrombosis, intrahepatic cholangiocarcinoma often show cord-like mass, hilar cancer often cord-like, often the lower part of cholangiocarcinoma for the process type, thrombosis hilar-like audio and video may be hilar cancer, or metastatic carcinoma of gallbladder. As a result of the expansion occurred in the bile duct before jaundice, B ultrasonic have the value for early Bile duct Cancer diagnosis.

3. PTC: it is the primary diagnosis for Cholangiocarcinoma, it can show the location and extent of bile duct cancer diagnosed up to 94% ~ 100%.

4. CT Scan: the basic performance of cholangiocarcinoma CT as follows:
1) A remarkable expansion of bile duct. Close to the wall thickening of gall bladder cancer, bile duct in the enhanced scan can be more clearly enhanced lumen narrowing was not planning deformation. General can be found in soft tissue density shadow of the tumor, the CT value of 50Hu, enhanced CT scan was enhanced value of 60 ~ 80Hu.

2) The majority of tumor infiltration along the bile duct wall growth. Gall bladder wall thickening, peripheral unclear, CT may be enhanced when the show easily. A small number were polypoid or nodular growth within the lumen, as a soft tissue density nodules.

3) The infiltrating tumor extended to the cavity wall fuzzy edge. Violations of the gallbladder often the liver, adjacent to blood vessels and lymphoid tissue. Was uneven and soft tissue density shadow, shape is not regular, the organizational structure of vague, ambiguous boundaries.

5. ERCP: duodenal papilla can be directly observed, contrast can show obstruction of distal bile duct.

6. Angiography: Angiography can better determine the bile duct can be removed.

7. Cytology: the expansion of the basis of the sinus PTCD Choledochofiberscope inserted directly observe and take mass biopsy forceps. PTC or trip can be taken PTCD bile cytology line.