Pediatric Nuclear Hepatology

摘要: The liver and biliary system develops from a bi-lobed (cephalic caudal) endodermal bud that sprouts along the ventral surface of distal end foregut at its junction with midgut. cephalic divides into two branches, which later form right left lobes liver. caudal gives rise to tract gallbladder (Fig. 11.1.1, Chap. 1). starts first as patent tubular structure, but turns solid core during early intrauterine life through proliferation epithelial cells. After recanalization by 12–14 weeks, bile secretion begins flows small intestine. Most congenital abnormalities are due either failure ducts (biliary atresia) or faulty cystic dilatation intrahepatic (Caroli’s disease) extrahepatic (choledochal cyst).