title: An intense F-FDG pulmonary microfocus on PET without detectable abnormality on CT: A manifestation of an iatrogenic FDG pulmonary embolus.
abstract: An incidental finding of an intense focus of (18)F-Fluorodeoxyglucose (FDG) pulmonary uptake on positron emission tomography (PET) without detectable lesions on computed tomography (CT) is highly suggestive of FDG microembolus. Its microscopic nature means it is undetectable on CT. It is an artefact attributable to (18)F-FDG-tracer contamination at the injection site. This paper reports a case of a 61 year-old lady with a past history of breast carcinoma, in whom follow-up PET/CT images demonstrated an incidental intense FDG pulmonary abnormality. A follow-up PET/CT seven months later demonstrated complete resolution of the abnormality.
authors: Nuclear Imaging Centre, Faculty of Medicine, University Putra Malaysia.
authors: As
authors: A
authors: Fathinul Fikri
authors: Wfe
authors: W
authors: Lau
references: Eur Radiol. 2003 Sep;13(9):2122-7
references: 12928963
references: Ann Nucl Med. 2009 Aug;23(6):599-603
references: 19452248
references: Semin Nucl Med. 2007 May;37(3):206-22
references: 17418153
references: J Comput Assist Tomogr. 2007 Sep-Oct;31(5):800-5
references: 17895795
references: J Nucl Med. 1977 Nov;18(11):1140-1
references: 915099