Pneumobilia
Appearance
Aetiology
[edit | edit source]Recent biliary instrumentation
[edit | edit source]- ERCP
- CBD stent placement
- PTC or IOC
Incompetent sphincter of Oddi
[edit | edit source]- Sphincterotomy
- Following passage of a gallstone
- Scarring e.g. chronic pancreatitis
- Drugs e.g. atropine
- Congenital
Biliary-enteric surgical anastomosis
[edit | edit source]- Cholecystoenterostomy
- Choledochoduodenostomy
- Whipple
Spontaneous biliary-enteric fistula
[edit | edit source]- Cholecystoduodenal
- PUD
- Traumatic
- Malignancy
Infection
[edit | edit source]- Cholangitis
- Emphysematous cholecystitis (usually GB gas only)
- Liver abscess (if contains gas and communicates with biliary tree)
- Ruptured hydatid cyst