<prompt> True about Extrahepatic binary atresiaAcholic stoolConjugated hyperbilirubinemiaAbsence of nucleide in duodenum in HIDA scanAll of these  <response>: Extrahepatic binary atresia Biliary Atresia is the absence of patent bile duct draning the liver.The abnormality found most commonly is complete atresia of extrahepatic biliary structures.Infants with biliary atresia often has an uneventful neonatal course until jaundice is noted at 2-3 weeks of age.Conjugated hyperbilirubinemia occurs.Urine is dark in colourStools may be normal or clay coloured acholic.The liver may be of normal size early, but it becomes enlarged with time.Liver becomes hard as a consequence of progressive cirrhosisSplenomegally is usually seenLaboratory findingsDirect bilirubin levels over 3 mgdlAlkaline phosphatase elevated to 500-1000 unitsLGamma Glutamyl transpeptidase levels 300 unitsLImaging studiesAbsence or inability to visualize a contracted gall bladder on USGSerial Scintiscans of right upper abdomen should be obtained after injection of Technitium Tc 99m. labeled iminodiacetate. Compounds IDA, HIDA, PIPIDA -- Liver fails to secret these compounds into the duodenum due to biliary obstruction.Needle biopsy of the liver - If bleeding and clotting tests are normal. 