Focal FDG Uptake in Lung Parenchyma Without Structural Alterations on CT
A 48-year-old female, under surveillance following surgery for gastric cancer was referred for control evaluation by the F-18 FDG PET/CT study. F-18 FDG PET/CT images demonstrated an area of increased FDG uptake in the right lung middle lobe parenchyma, without any structural abnormality on CT []. A repeat F-18 FDG PET/CT scan was performed after a brief interval of 4 days of the first study did not reveal any abnormality; the previously noted intense focus of FDG avidity having been completely resolved []; the latter suggesting the benign nature of the lung abnormality. On the basis of clinical presentation and imaging studies a final diagnosis of iatrogenic microembolism was made.