Sunday, January 9, 2011

Jaundice

Types of jaundice:
There are 3 types of jaundice-

1.Hemolytic jaundice: bilirubin level>6mg/dl

Clinical Features:
Mongolian face

On examination:
  • Anaemia
  • Jaundice
  • Hepatosplenomegaly
  • Urine color:normal(as bilirubin is uncongugated)
2.Hepatocellular Jaundice:
Cause:
a)Acute liver disease(acute hepatitis)
b)Chronic liver disease

3.Obstructive Jaundice(also called cholestasis)
Cause:
  • Intrahepatic
  • Extrahepatic
Features:
  • Itching
  • Steatorrhoea
Causes of intrahepatic cholestasis:
 Transient block of hepatic canaliculi-may produce itching
  1. Viral hepatitis
  2. Alcohol
  3. Drug:Chlorpromazine
  4. Chronic hepatitis
  5. Cirrhosis of liver
  6. Pregnancy
  7. Primary biliary cirrhosis
  8. Sclerosing cholangitis
Causes of extrahepatic cholestasis:
  1. In the lumen:
  • Stone
  • Round worm
     2.In the wall:
  • Stricture
  • Primary biliary cirrhosis
     3.Outside the wall:external compression by-
  • Carsinoma of the head of the pancreas
  • Carcinoma of common bile duct
  • metastatic tumour
  • Enlarged lymphnode in porta hepatitis
  • choledocal cyst
Clinical feature of Hepatocellular jaundice:
If viral hepatitis:anorexia,nausea,vomiting.
If caused by CLD:features of chronic liver disease

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