Peripheral cholangiocarcinoma is a relatively rare cancer. However, it is known to have an unfavourable prognosis compared with that of hepatocellular carcinoma. Little is known about its aetiology, clinical or pathological features.
What is the most common location of cholangiocarcinoma?
Perihilar cholangiocarcinoma (also known as a Klatskin tumor) begins in an area called the hilum, where the right and left major bile ducts join and leave the liver. It is the most common form of the disease, accounting for more than half of all cases.
Is cholangiocarcinoma hard to diagnose?
The diagnosis of cholangiocarcinoma remains difficult, despite the multiple diagnostic methods available. Further studies comparing the accuracy of the various imaging methods, especially the new intraductal methods, are needed, and the imaging features of malignancy should be standardized.
What is the tumor marker for cholangiocarcinoma?
The tumor marker carbohydrate antigen 19-9 (CA 19-9) can be evaluated in pancreatic and bile duct malignancies, as well as in benign cholestasis. A serum CA 19-9 level greater than 100 U/mL (normal < 40 U/mL) has 75% sensitivity and 80% specificity in identifying patients with PSC who have cholangiocarcinoma.
Is cholangiocarcinoma slow growing?
Cholangiocarcinomas are usually slow-growing tumors that spread locally via the lymphatic system. Treatment and long-term prognosis are dependent upon the location of the mass.
Which parasite causes cholangiocarcinoma?
Two parasites are commonly involved. One is Opisthorchis verrini, which is found in Southeast Asian countries, including Thailand, Lao People’s Democratic Republic, Vietnam, and Cambodia. The other is Clonorchis sinensis, which is common in rural areas of Korea and China.
How do you confirm cholangiocarcinoma?
Imaging tests can help your doctor see your internal organs and look for signs of cholangiocarcinoma. Techniques used to diagnose bile duct cancer include ultrasound, computerized tomography (CT) scans and magnetic resonance imaging (MRI) combined with magnetic resonance cholangiopancreatography (MRCP).
Can cholangiocarcinoma be benign?
A bile duct tumor is an abnormal growth that may be benign (non-cancerous) or malignant (cancerous). Most gallbladder tumors are benign, but malignant tumors may be indicative of cholangiocarcinoma (bile duct cancer).
How long does it take for cholangiocarcinoma to develop?
It could have been before our daughter was born or it could have been after. One of the surgeons we met told us that CC takes *up to* 20 years to develop before symptoms show up.
Which is risk factor for cholangiocarcinoma?
There are considerable geographic and demographic variations in the incidence of cholangiocarcinoma. There are several established risk factors for CC including parasitic infections, primary sclerosing cholangitis, biliary-duct cysts, hepatolithiasis, and toxins.
What is the differential diagnosis for cholangiocarcinoma?
Differential diagnosis is different according to whether the tumour is intra or extrahepatic and depending on the growth pattern. For an intrahepatic mass-forming cholangiocarcinoma consider: liver metastases central necrosis (high T2 signal) is more common. hepatocellular carcinoma (HCC) tumour thrombus more common.
What is a hilar cholangiocarcinoma?
Hilar cholangiocarcinoma are usually firm, intramural, annular tumors that encircle the bile duct, or may be bulky hard masses that are on the duct or hilar region and extend into the liver. They may also appear as a spongy friable mass in the lumen of the bile duct.
What is cholangiocarcinoma of the biliary tree?
Cholangiocarcinoma is a malignant tumor arising from cholangiocytes in the biliary tree. It tends to have a poor prognosis and high morbidity. It is the second most common primary hepatic tumor, with intrahepatic cholangiocarcinomas (ICCs) accounting for 10-20% of primary liver tumors. Article:
What is the prognosis of cholecholangiocarcinoma?
Cholangiocarcinoma is the second most common primary hepatobiliary malignancy after hepatocellular carcinoma (HCC). They tend to have a poor prognosis and high morbidity.
