Testing & Diagnosis for Choledochal Cysts in Children

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How are choledochal cysts diagnosed?

Choledochal cysts can be diagnosed prenatally on an ultrasound.

After your baby is born, you or your child's doctor may notice a right upper quadrant mass, with or without jaundice.

Your child will likely undergo a combination of the following tests to verify the diagnosis:

  • Computerized tomography scan (CT or CAT scan) — A CT scan shows detailed images of any part of your child’s biliary system.
    • CT scans are more detailed than general x-rays.
  • Cholangiography — This is a radiographic visualization of your child’s bile ducts after ingestion or injection of a substance that illuminates the ducts.
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