title: False-negative gallbladder scintigram in acute cholecystitis.
abstract: Two cases of acute cholecystitis are described, in which the gallbladder was visualized in the hepatobiliary scintigram. While most cases of acute cholecystitis are due to cystic-duct occlusion by calculi, in a small percentage the acute gallbladder inflammation results from other pathogenic mechanisms. These cannot be excluded by gallbladder scintigram alone.
mesh_terms: D000368:Aged; D002764:Cholecystitis / Q000000981:diagnostic imaging*; D002769:Cholelithiasis / Q000000981:diagnostic imaging; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D008875:Middle Aged; D013667:Technetium; D014055:Tomography, Emission-Computed
chemical_list: D013667:Technetium