Answer :
Final answer:
The best next step in the management of a common bile duct cyst identified by abdominal ultrasound is surgery now to prevent malignancy.
Explanation:
The best next step in the management of a common bile duct cyst identified by abdominal ultrasound is Surgery now to prevent malignancy. A common bile duct cyst is a congenital dilation of the biliary tree that can lead to complications such as cholangitis and malignancy. Early surgical intervention is recommended to prevent the risk of malignancy.
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