Subdiaphragmatic Gallstone Mimicking Hepatic Malignancy on FDG PET/CT. (April 2015)

• Record Type: Journal Article
• Authors: Kim, Jisoo; Siegel, Alan; Yen, Stephanie P.; Seltzer, Marc
• Is Part Of: Clinical nuclear medicine. Volume 40:Number 4(2015)
• Publication Date: 2015-04
• Subjects: gallstone -- FDG -- PET/CT; Nuclear medicine -- Periodicals; Radioisotope scanning -- Periodicals; Nuclear Medicine -- Periodicals; 616.07575
• DOI: 10.1097/RLU.0000000000000658
• Languages: English
• ISSNs: 0363-9762

Abstract

Abstract : Abstract: A 70-year-old man underwent an FDG PET/CT for a possible primary liver malignancy or metastasis found on an abdominal MRI obtained as part of a workup for intermittent abdominal pain. The MRI showed an enhancing lesion at the dome of the right lobe of the liver. The lesion was FDG avid with a discrete central calcification. In conjunction with the patient's history of laparoscopic cholecystectomy 1 year prior, the findings were consistent with inflammation around a migrated subdiaphragmatic gallstone. One month after the scan, a CT-guided percutaneous biopsy of this lesion revealed chronic inflammatory cells with no evidence of malignancy.