title: IgG4-Related Tubulointerstitial Nephritis Pattern in 18F-FDG PET/CT.
abstract: A 17-year-old adolescent girl was admitted with chronic arthralgia, Raynaud phenomenon, pericarditis, and evidences of chronic diffuse inflammation. F-FDG PET/CT scan was performed to search systemic vasculitis and showed diffuse moderate uptake in the kidneys. We suggested the existence of a nephritis, but the ultrasonography result was normal, and no treatment was introduced. Another F-FDG PET/CT scan was performed 7 months later to explore abdominal pain. It showed again diffuse intense uptake in both kidneys. A proteinuria was highlighted, and renal biopsy allowed to diagnose IgG4-related disease.
authors.affiliation: From the *Service de Médecine Nucléaire, Centre Cardiologique du Nord, Saint Denis; †Service d'Anatomopathologie, Hôpital Pitié Salpétrière, Paris; and ‡Service de Médecine Interne, Hôpital Delafontaine, Saint Denis, France.
authors.forename: Ophélie
authors.initials: O
authors.lastname: Bélissant
authors.forename: Mohamed
authors.initials: M
authors.lastname: Guernou
authors.forename: Philippe
authors.initials: P
authors.lastname: Rouvier
authors.forename: Caroline
authors.initials: C
authors.lastname: Compain
authors.forename: Gérald
authors.initials: G
authors.lastname: Bonardel
mesh_terms: D000293:Adolescent; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007074:Immunoglobulin G / Q000276:immunology*; D064847:Multimodal Imaging; D009395:Nephritis, Interstitial / Q000000981:diagnostic imaging* / Q000276:immunology; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed
chemical_list: D007074:Immunoglobulin G; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18