PMC6346945_01
[18F] Fluorodeoxyglucose (FDG) PET-CT evidence of response to corticosteroid therapy.. Thoracic aortic wall, recognizable in A-D (arrows), is the site of marked accumulation of [18F] Fluorodeoxyglucose (FDG).. Panel E shows the complete disappearance of [18F] Fluorodeoxyglucose (FDG) uptake in the aortic wall after 6 months of corticosteroid therapy (1 mg/kg/day)..
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The positron emission tomography (PET)-CT scan confirmed our final hypothesis with the presence of high periaortic [18F] Fluorodeoxyglucose ([18F]FDG) uptake along the ascending portion of the aortic arch, a finding consistent with active aortitis (Fig. 1, A-D). After six months of high-dose corticosteroid therapy, a control PET-CT scan did not show any abnormal [18F] FDG uptake in the aortic wall (Fig. 1, E).