Obstrução biliar extra-hepática secundária a colelitíase de biliverdina em um gato

Abstract

Cholelithiasis is uncommon in cats, pathological mechanisms are not elucidated and, as well as cholecystitis, neoplasia, pancreatitis, and parasitic infection are causes of extrahepatic biliary obstruction (EHBO). In humans, the stones are related to hyperbilirubinemia due to hemolysis, hypomotility of the gallbladder (VB), bacterial infection and metabolic diseases such as Diabetes mellitus. Given the low case of cholelithiasis in cats, the aim of the study is to report a case of extrahepatic biliary obstruction secondary to biliverdin cholelithiasis in a four-year-old cat and history of acute vomiting that had diagnostic complementation on abdominal ultrasound and abdominal radiography. The patient underwent cholecystectomy and choletomy for stones removal and clearance of the biliary tract, followed by analysis, which confirmed that it was biliverdin cholelithiasis.