What is the disorder biliary atresia?

Bile Duct Blockage: The bile duct carries the bile formed in the liver to the small intestine. Any disease that narrows, scars, or obstructs the duct can be called atresia. In some cases a patient is born with a narrow duct, called congenital atresia. In other cases chronic inflammation, infection, or even rejection of a liver transplant can cause scarring or narrowing of the duct.

Liver problem: Biliary atresia is a condition in which the bile ducts scar closed and prevent the flow of bile into the intestine. If untreated the liver will die. Surgery is used to biopsy liver do cholangiogram to diagnose the condition and if present a portion of intestine can be fashioned into a replacement for the damaged bile ducts.

Cong.bile duct block: Biliary atresia is disease of bile ducts in infants.Bile ducts become inflamed,blocked soon after birth.Bile stays in liver,where it starts to destroy liver cells rapidly and cause scarring of liver.No known cause,most likely congenital. Infant gets jaundiced.No cure.Only treatment, surgical anastomosis of the of bowel to liver.Many eventually need liver transplant.Intrahepatic duct blockage worse