RT Book, Section A1 Jones, Stephanie A. A1 Karrer, Frederick M. A2 Ziegler, Moritz M. A2 Azizkhan, Richard G. A2 Allmen, Daniel von A2 Weber, Thomas R. SR Print(0) ID 1100952091 T1 Biliary Atresia and Choledochal Cyst T2 Operative Pediatric Surgery, 2e YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 978-0-07-162723-8 LK accesssurgery.mhmedical.com/content.aspx?aid=1100952091 RD 2024/03/29 AB Key PointsBiliary atresia is the most common surgical cause of cholestatic jaundice in the newborn. It is suspected based on laboratory testing demonstrating direct hyperbilirubinemia, elevated alkaline phosphatase, and gamma-glutamyl transferase.Biliary atresia is progressive inflammatory, fibrosing cholangiopathy. Ultrasonography cannot distinguish the obliterated extrahepatic biliary ducts, but can suggest the diagnosis if there is an absent or diminuitive gallbladder or a triangular cord sign.Ultimately, cholangiography is the gold standard for confirming the diagnosis of biliary atresia.