Biliary atresia (choledochal atresia) and choledochal cyst are difficult to identify prenatally, and their prognosis is vastly different. Early and timely diagnosis and treatment directly affect the prognosis of the affected children.
Features of prenatal diagnosis of biliary atresia (choledochal atresia) and choledochal cyst
Biliary atresia (common bile duct atresia)
common bile duct cyst
Biliary cyst
Not seen or poorly displayed
Can be clearly demonstrated
Cyst
Regularly rounded, clear borders, smooth margins, and high tension
Non orthorhombic, irregular in shape, and low tension
Hepatic hilar cysts
Small and insignificantly enlarged, maximal diameter 2.5 cm
Gradually increasing in size over time, up to 8.2 cm
Jaundice
Occurs early in the postnatal period, progressively worsens, and liver function is severely impaired.
Most of them are not obvious, and the jaundice is fluctuating, sometimes severe and sometimes mild.
Postnatal cysts
No obvious maximum
If jaundice and liver function impairment occur, the cysts tend to increase rapidly.
Intraoperative imaging
Intrahepatic bile duct dysplasia
Normal intrahepatic bile duct development
The physician recommends
Ultrasound, biochemistry and jaundice should be checked every 7-10 days after birth.
Ultrasound, biochemistry and jaundice will be repeated every 7-10 days after birth.