Abstract
The most commonly accepted pathophysiologic mechanism for the appearance of the “hot
rim” sign is inflammatory changes from the gallbladder spreading to and affecting
the surrounding liver. The “hot rim” sign has clinical relevance, because it is associated
with a high incidence of perforated or gangrenous cholecystitis. The presence of these
above-mentioned conditions increases the likelihood of complications and warrants
urgent surgical evaluation. We present present the findings of on hepatobiliary scintigraphy
and adjunct single-photon emission computed tomography/computed tomography-fused imaging
in a case of acalculous cholecystitis, which has been confirmed on histopathology
(marked degree of acute gangrenous cholecystitis).
Keywords
99mTc-iminodiacetic acid scan - acalculous cholecystitis - rim sign - single-photon emission
computed tomography/computed tomography
