Peer-reviewed veterinary case report
Ultrasound signs of bile duct blockage in 30 cats
By Gaillot, Hugues A et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·2007·Imagerie Mé, France·View original on PubMed →
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Original publication title: Ultrasonographic features of extrahepatic biliary obstruction in 30 cats.
- Species:
- cat
Plain-English summary
A group of 30 cats with extrahepatic biliary obstruction (a blockage in the bile duct) underwent ultrasound exams to identify the cause of their condition. Most cats had a bile duct wider than 5 mm, and while the ultrasound could detect stones causing the blockage, it couldn't tell if tumors or inflammation were responsible. Cats showing symptoms for 10 days or less were more likely to have stones. Treatment often involves addressing the underlying cause, and early detection can lead to better outcomes.
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Abstract
The goals of our study were to review the ultrasonographic features of spontaneous extrahepatic biliary obstruction in cats and to determine whether these features can assist in differentiating tumor, inflammation, and choleliths as the cause of obstruction. Thirty cats with a presurgical ultrasound examination an dconfirmed extrahepatic biliary obstruction were studied. A common bile duct diameter over 5 mm was present in 97% of the cats with extrahepatic biliary obstruction. Gallbladder dilation was seen in < 50% of the cats. Ultrasound identified all obstructive choleliths (calculus or plugs) in the common bile duct. However, neither common bile duct diameter nor appearance or any other ultrasonographic feature allowed differentiation between tumor and inflammation as the cause of obstruction. A short duration of clinical signs (10 days or less) seemed to be associated with obstructive cholelithiasis.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/17899979/