What is Cholangiocarcinoma?

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Cholangiocarcinoma is a heterogeneous group of tumours derived from bile duct cells. These ducts are little tubes that bring bile out of the liver to the intestine.

It is not a very frequent cancer, with just 2 new cases being diagnosed in every 100,000 people per year in our environment. However, cholangiocarcinoma represents the second most common malignant liver cancer and in recent years the number of cases diagnosed has increased.  

This tumour is classified according to the anatomical origin of the lesion and subdivided into:  

  • Intrahepatic cholangiocarcinoma, a tumour lesion that develops within the liver.  
  • Extrahepatic cholangiocarcinoma, affecting the bile duct.

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