¹⁸F-Fluorodeoxyglucose Positron Emission Tomography in a Case of Retroperitoneal Fibrosis

Abstract

A patient with recurrent abdominal pain was admitted to our hospital. Computed tomography showed a soft dense mass surrounding the abdominal aorta at the infrarenal level, which was compatible with retroperitoneal fibrosis. ¹⁸F-fluorodeoxyglucose (¹⁸F-FDG) positron emission tomography showed abnormal uptake of ¹⁸F-FDG into these lesions. Two months after the initiation of corticosteroid therapy, the abnormal uptake of ¹⁸F-FDG had ceased along with a reduction in the fibrous mass surrounding the abdominal aorta.