Medicine Gas in the biliary tree on plain abdominal X-ray is suggestive of: A Empyema of the gallbladder B Mirizzi syndrome C Biliary enteric fistula D Porcelain gallbladder 💡 Explanation Gas in the biliary tree on plain abdominal X-ray is suggestive of: ✓ Correct Answer: C. Biliary enteric fistula