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CASE REPORT
Year : 2016  |  Volume : 6  |  Issue : 1  |  Page : 31

Acute Calculous Cholecystitis Missed on Computed Tomography and Ultrasound but Diagnosed with Fluorodeoxyglucose-Positron Emission Tomography/Computed Tomography


1 Department of Radiology, University of California San Francisco, San Francisco, CA 94143, USA
2 Department of Radiology, San Francisco VA Medical Center, San Francisco, CA 94121, USA

Correspondence Address:
Aung Zaw Win
Department of Radiology, San Francisco VA Medical Center, 4150 Clement Street, San Francisco, CA 94121
USA
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/2156-7514.188474

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We present a case of a 69-year-old patient who underwent ascending aortic aneurysm repair with aortic valve replacement. On postsurgical day 12, he developed leukocytosis and low-grade fevers. The chest computed tomography (CT) showed a periaortic hematoma which represents a postsurgical change from aortic aneurysm repair, and a small pericardial effusion. The abdominal ultrasound showed cholelithiasis without any sign of cholecystitis. Finally, a fluorodeoxyglucose (FDG)-positron emission tomography (PET)/CT examination was ordered to find the cause of fever of unknown origin, and it showed increased FDG uptake in the gallbladder wall, with no uptake in the lumen. FDG-PET/CT can diagnose acute cholecystitis in patients with nonspecific clinical symptoms and laboratory results.


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