Ultrasound demonstrate dilated common bile duct
#Rome_III_criteria
Note: >8 mm in diameter, both elevated liver enzymes and a dilated CBD should raise the question of obstruction
Ref:
Uptodate
[ Clinical manifestations and diagnosis of sphincter of Oddi dysfunction]
Uptodate
[ Clinical manifestations and diagnosis of sphincter of Oddi dysfunction]
Harrison
[ 2429]
Cecil
[ 475]