Cholestasis, a medical condition where the flow of bile is obstructed or slowed down, is a result of liver cells not being able to produce bile properly. Typically, bile flows from the liver to the duodenum, which is the first section of the small intestine. However, when this transport process is hindered, cholestasis occurs. While the symptoms of cholestasis may be similar regardless of the underlying cause, the treatments and prognosis can vary depending on the specific condition.
Causes of Intrahepatic Cholestasis
Intrahepatic cholestasis refers to cholestasis that originates within the liver. Several factors can contribute to this condition, including alcoholic liver disease, bacterial abscesses, prolonged use of intravenous or parenteral nutrition, lymphoma, cirrhosis, pregnancy, hepatitis, tuberculosis, certain medications, or severe bloodstream infections. Additionally, both primary and metastatic liver cancer can lead to the development of intrahepatic cholestasis.
Causes Beyond the Liver
When it comes to extrahepatic cholestasis, the root cause lies outside the liver. This type of cholestasis is typically triggered by various conditions that directly affect the common bile duct. Some of these causes include the presence of stones, strictures or narrowing in the duct, and the occurrence of bile duct tumors. Additionally, pressure exerted on the duct by a nearby tumor or mass can also contribute to the development of extrahepatic cholestasis. Other potential factors that may lead to this condition include pancreatitis or the presence of a pancreatic tumor.