Revision 7 for 'Jaundice'

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Jaundice

Jaundice refers to a clinical sign of hyperbilirubinemia (>2.5mg/dl) which has many causes. In other words it is a clue to a diagnosis. It can be largely divided into 2 types

  • obstructive
  • non-obstructive

Imaging has a major role in detecting the obstructive causes.

Pathology

Categories of causes

  • pre-hepatic ie. hemolytic
  • hepatic ie. within the liver
  • post-hepatic ie. due to obstruction in biliary system

The biliary system can be divided into

  • intrahepatic system comprising of the hepatic ducts and its branches
  • extrahepatic system comprising of common hepatic duct (CHD), common bile duct (CBD) and gallbladder (GB).

Obstruction at any extrahepatic site will lead to proximal dilatation.

Common causes of obstruction

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