Diagnostic evaluation of Children with Persistent Jaundice	
		
Test	Purpose	
Laboratory tests	Exclude infectious, metabolic and genetic diseases 	
Ultrasonography	Excludes choledochal cyst	
Percutaneous liver biopsy	Excludes giant cell hepatitis	
Hepatobiliary scintigraphy	Confirms the diagnosis, if negative	
Duodenal aspiration	Confirms the diagnosis with bile absence in the duodenum	
Laparoscopy	Confirms the diagnosis by direct visualization of a sclerotic extrahepatic biliary tree	
Percutaneous cholecistography	Confirms the diagnosis by missed visualization of the extrahepatic biliary tree	
Endoscopic retrograde cholangiopancreatography	Confirms the diagnosis by missed visualization of the extrahepatic biliary tree