Diseases of the Esophagus*

Extrahepatic cholestasis in the dog and the differentiation of extrahepatic and intrahepatic cholestasis

“…In the dog, cholestasis is common, is usually intrahepatic, and is only seldom caused by partial or complete blockade of bile flow in the choledochal duct (3,4,5). This paper describes the clinical, laboratory and pathomorphological features of extrahepatic cholestasis and examines the specificity of these observations as compared with the findings in intrahepatic cholestasis.…”

Per Rectal Portal Scintigraphy Using 99mTechnetium Pertechnetate to Diagnose Portosystemic Shunts in Dogs and Cats

“…Congenital portal vascular anomalies have been reported in dogs and cat^.^-^ Acquired portosystemic anastomosis can occur secondary to chronic liver I Diagnosis of portosystemic shunts can sometimes be difficult because clinical signs are quite' variable and nonspecific. 12 Several nuclear medicine imaging techniques have been used to diagnose portosystemic shunts in dogs.I3-l6 Recent reports describe colonic administration of 1231-iodoamphetamine ('231MP) or technetium-99m pertechnetate (yymT~04-) to quantify portosystemic shunts in dogs and man.17-21 These radiopharmaceuticals are rapidly absorbed into the portal circulation, and a gamma camera is used to temporally record portal blood flow.…”