Hot rim sign on hepatobiliary scintigraphy (Tc99m-HIDA ) is seen in ?
* Increased Pericholecystic hepatic band of radio tracer activity called Rim sign. * A rim of increased hepatic activity directly adjacent to the gallbladder fossa in association with non visualization of the gall bladder is a specific sign of acute cholecystitis paicularly associated with gangrene and perforation . Below CT Image Shows Emphysematous Cholecystitis with Necrosis and Air within the wal of GB.It is surgical Emergency with high risk of GB perforation and moality.
Chronic cholecystitis
Biliary Atresia
Gangrenous Cholecystitis
Porcelain GallBladder
Nuclear medicine