title: Endoscopic retrograde cholangiopancreatography findings of a gallbladder filling defect caused by sludge.
abstract: Ultrasound of the abdomen has described intraluminal gallbladder masses or stones without acoustic shadowing which have been termed "sludge balls." This finding has not been previously reported via its x-ray appearance at endoscopic retrograde cholangiopancreatography. This case reports this finding at endoscopic retrograde cholangiopancreatography and emphasizes that it is in the spectrum between suprasaturated bile and choledocholithiasis.
mesh_terms: D001646:Bile / Q000502:physiology*; D002760:Cholangiopancreatography, Endoscopic Retrograde; D002763:Cholecystectomy; D005705:Gallbladder Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography