title: IgG4-Related Renal Lesions Detected by Delayed 18F-FDG PET/CT Scan.
abstract: Multiple renal lesions, which showed clearly demarcated low densities on contrast-enhanced CT, were revealed in a 56-year-old woman. The F-FDG avidity of the renal lesions was equal to or mildly higher than that of the renal cortex on the routine PET/CT scan, but significantly higher on the delayed scan. IgG4-related disease with renal involvement was confirmed subsequently by the measurement of serous IgG4 and the pathology of renal lesion.
authors.affiliation: From the *Department of Nuclear Medicine, Peking University First Hospital, Beijing; †Department of Nuclear Medicine, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China; and ‡Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA.
authors.forename: Zhanli
authors.initials: Z
authors.lastname: Fu
authors.forename: Meng
authors.initials: M
authors.lastname: Liu
authors.forename: Jin
authors.initials: J
authors.lastname: Zhang
authors.forename: Ziao
authors.initials: Z
authors.lastname: Li
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
mesh_terms: D001327:Autoimmune Diseases / Q000000981:diagnostic imaging* / Q000276:immunology; D003287:Contrast Media; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007074:Immunoglobulin G / Q000276:immunology*; D007674:Kidney Diseases / Q000000981:diagnostic imaging* / Q000276:immunology; D008875:Middle Aged; D000072078:Positron Emission Tomography Computed Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D007074:Immunoglobulin G; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18