gross pathologic findings included periductal biliary fibrosis ( 4 cats ) , periductal pancreatic fibrosis ( 2 cats ) , cholelithiasis ( 2 cats ) , deformation of the gallbladder ( 2 cats ) , and chronic interstitial pancreatitis ( 2 cats ) .
C0008350
cholelithiasis
C0016976
gallbladder