A 58-year-old man with fever, myalgia, and dysuria was admitted to the hospital. Because of prolonged fever, FDG PET/CT was performed. Surprisingly, bilateral kidneys were rapidly enlarged for 5 days with the renal parenchyma showing intense hypermetabolism. FDG PET/CT demonstrated physiology of Hantavirus invading kidneys and causing nephritis. This case illustrates that FDG PET/CT could be the choice of image modality for diagnosis and treatment evaluation of patients suspected of hemorrhagic fever with renal syndrome. To the best of our knowledge, this is the first report of FDG PET/CT image for a patient with hemorrhagic fever with renal syndrome.
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