Abstract
IN TWO prior publications in this series, algorithms were presented that primarily dealt with diagnosis of jaundice in newborn1and with medical causes of jaundice in older children and adults.2In latter publication, author concluded that the most difficult problem in diagnosis of jaundice is differentiation of intrahepatic from extrahepatic cholestasis. Our algorithms pursue this problem by branching logic using current diagnostic modalities that have become available during past few years (Fig 1). When conjugated hyperbilirubinemia exists with increasing total bilirubin levels of more than 3 mg/dL, visualization of biliary tree by conventional oral or intravenous cholecystography (IVC) is unlikely and should not be attempted. The initial step is to determine if there has been recent biliary tract surgery. When a T-tube is still in situ, T-tube cholangiography is simplest way to opacify biliary tree and clarify
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