A hepatobiliary scan was performed using 4 mCi ofTc99m-Choletec IV.
Initial 60 minutes of imaging performed using 5 minutes per acquisition. There is normal excretion of radiotracer into the common bile duct and duodenum see starting at 10 minutes. The gall bladder fails to fill over the 1-hour acquisition with an empty gall bladder fossa (dashed oval).
Left anterior oblique and right lateral images obtained at the end of 60 minutes confirms non-filling of the gall bladder (dashed ovals).
Delayed images obtained at 4 hours show persistent non-filling of the gall bladder (dashed ovals).
In the appropriate clinical setting, findings are consistent with acute cholecystitis.