Page 15 - SONO 260 CHAPTER 4 THE BILE DUCTS
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PATHOLOGY OF THE BILE DUCTS
PNEUMOBILIA
▪ Pneumobilia is defined as air within the biliary tree.
– Pneumobilia is associated with recent biliary or gastric surgery,
emphysematous or prolonged acute cholecystitis, or fistula formation.
– Pneumobilia is diagnosed sonographically when echogenic linear structures are seen within the ducts.
– Air will produce ring down artifact.
