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lüll The rim sign in hepatic abscess: case report and review of the literature McDonald KL; Davani MJ Nucl Med 1997[Aug]; 38 (8): 1282-3We studied a previously healthy patient who presented with a 3-wk history of fever, flu-like symptoms and abdominal pain. METHODS: Blood cultures were positive for Escherichia coli. A computed tomography (CT) scan revealed a 2-cm low-density focus in the right hepatic lobe. A technetium-99m-mebrofenin scan showed a photopenic area in the right hepatic lobe surrounded by a rim of activity greater than the adjacent parenchymal activity. RESULTS: Gallbladder visualization was normal and the diagnosis of hepatic abscess was made. CT-guided percutaneous drainage of the lesion yielded six cc of pus, the culture of which grew E. coli, Prevotella and Bacteroides fragilis. Drainage and a 6-wk course of intravenous antibiotics were followed by clinical improvement and resolution of the abscess by CT. CONCLUSION: The rim sign and its possible mechanism of causation in hepatic abscess are discussed in this report, together with a review of the literature.|*Imino Acids[MESH]|*Organotechnetium Compounds[MESH]|*Radiopharmaceuticals[MESH]|Aniline Compounds[MESH]|Bacteroidaceae Infections/diagnostic imaging[MESH]|Bacteroides Infections/diagnostic imaging[MESH]|Bacteroides fragilis[MESH]|Escherichia coli Infections/diagnostic imaging[MESH]|Glycine[MESH]|Humans[MESH]|Liver Abscess/*diagnostic imaging/microbiology[MESH]|Male[MESH]|Middle Aged[MESH]|Prevotella[MESH]|Radionuclide Imaging[MESH]|Tomography, X-Ray Computed[MESH] |