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Table 1: Milwaukee classification for sphincter of Oddi dysfunction. |
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|
|
Type I |
Type II |
Type III |
|
Biliary pain |
+ |
+ |
+ |
|
Altered LFTs |
+ |
±* |
– |
|
Bile duct dilatation |
+ |
±* |
– |
|
Delayed biliary drainage |
+ |
±* |
– |
|
LFTs = liver function tests with alanine aminotransferase (ALT) and aspartate aminotransferase (AST) twice the average on two or more occasions. Bile duct dilatation ≥ 12 mm on ultrasound or > 10 mm on cholangiography. Delayed biliary drainage = drainage of contrast medium delayed for > 45 minutes after ERCP. * One or two positive factors. |
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