ª Springer Science+Business Media, LLC, part of Abdom Radiol (2018) Springer Nature 2018 https://doi.org/10.1007/s00261-018-1655-4 Abdominal Radiology 1 1 Pengcheng Zhang , and Raymond B. Dyer Department of Radiology, Wake Forest Baptist Medical Center, Wake Forest University School of Medicine, 1 Medical Center Blvd., Winston-Salem 27157, NC, USA The radionuclide ‘‘hot rim’’ has a correlate on en- In the diagnosis of acute cholecystitis, nuclear medicine hanced CT images, secondary to arterial hyperemia in often plays a useful role. The diagnosis is dependent on the hepatic parenchyma adjacent to the gallbladder fossa the absence of radiotracer accumulation, most com- (Fig. 3A, B) [4, 5]. While the CT appearance of the monly Technetium-99m-Iminodiacetic acid (Tc99m- finding is likely not as specific as its presence on an IDA), in the gallbladder lumen. The ‘‘hot rim’’ sign de- radionuclide IDA scan, CT remains the most common scribes an increase in the pericholecystic distribution of imaging study in the evaluation of acute abdominal radiotracer which may also be seen in the setting of acute complaints. Recognition of the ‘‘hot rim’’ on a CT cholecystitis (Figs. 1, 2)[1, 2]. The sign correlates with examination is most useful in combination with other inflammatory changes and edema in
Abdominal Radiology – Springer Journals
Published: Jun 4, 2018
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