RID35490 rim sign of gallbladder

synonym gallbladder rim sign pericholecystic rim sign thickened gallbladder wall sign

definition Appearance of a curvilinear, penicholecystic rim of increased hepatic tracer activity adjacent to a photopenic gallbladder fossa on cholescintigraphy. Indicates acute cholecystitis.

comment http://radiology.rsna.org/content/209/3/801