Table 2: Diagnostic criteria for biliary sphincter of Oddi dysfunction according to Rome IV.

Must include:

1. Biliary-type pain

2. Elevated liver enzymes or dilated bile duct (> 6 mm)

3. Absence of choledocholithiasis or other structural alterations of the biliary tract

Support criteria:

1. Normal amylase/lipase

2. Abnormal sphincter of Oddi manometry

3. Abnormal hepatobiliary scintigraphy

Suspected sphincter of Oddi dysfunction:

biliary type pain + at least one associated objective finding.

Episodic functional abdominal pain:

biliary-type pain without any other alteration.