18F-FDG and 68Ga-FAPI-04 PET/CT Imaging of a Case With Immunoglobulin G4–Related Disease Presenting as Hepatic Masses. (9th December 2022)

• Record Type: Journal Article
• Authors: Zhang, Zeyu; Jiang, Hui; Zhang, Lu; Cheng, Chao; Zuo, Changjing
• Is Part Of: Clinical nuclear medicine. Volume 47:Number 12(2022)
• Page Start: 1092
• Page End: 1094
• Publication Date: 2022-12-09
• Subjects: 18F-FDG -- 68Ga-FAPI-04 -- IgG4-related disease -- PET/CT -- liver; Nuclear medicine -- Periodicals; Radioisotope scanning -- Periodicals; Nuclear Medicine -- Periodicals; 616.07575
• DOI: 10.1097/RLU.0000000000004377
• Languages: English
• ISSNs: 0363-9762

Abstract

Abstract: Two hepatic masses were discovered through ultrasonography in a 50-year-old man with increased CA19-9, which is highly suspicious for malignancy. PET/CT images revealed intense 18 F-FDG and 68 Ga-FAPI-04 uptake in intrahepatic lesions. Histopathology with biopsy confirmed the diagnosis of immunoglobulin G4 (IgG4)–related disease. Here, we reported a case of IgG4-related primary localized pseudotumor without any other organ involvement. We concluded that in clinical work, if intrahepatic masses show high uptake of 18 F-FDG or 68 Ga-FAPI-04, intrahepatic IgG4-related disease should be considered for differential diagnosis.