HIDA scan

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Overview
A Hepatobiliary Imino-Diacetic Acid scan, [HIDA scan] or cholescintigraphy is a radiology imaging procedure to evaluate the health and function of the gall bladder. The radioactive tracer is injected through any accessible vein, then allowed to circulate to the liver, where it is excreted into the biliary system and stored by the gallbladder and biliary system.

If the gall bladder is not visualized within 4 hours after the injection, this indicates cystic duct obstruction.

Differential Diagnosis for HIDA Scan Evaluations

 * Acute cholecystitis
 * Acute pancreatitis
 * Adenocarcinoma of ampulla of Vater
 * Ampulla of Vater stones
 * Bile duct obstruction
 * Bile duct stricture
 * Biliary tree disorder
 * Bilirubin gall stone
 * Choledocholithiasis
 * Cholelithiasis
 * Clonorchiasis
 * Fascioliasis
 * Gallbladder carcinoma
 * Hydatid cyst
 * Obstruction of ampulla of Vater
 * Obstructive jaundice syndrome
 * Pancreatic adenocarcinoma
 * Pancreatic duct obstruction
 * Primary sclerosing cholangitis
 * Stenosis of ampulla of Vater

False Negative HIDA Scan

 * Acalculus cholecystitis
 * Duodenal diverticulum
 * Accessory cystic duct