Fluorine-18-fluorodeoxyglucose uptake in pneumonia.
Whole-body PET imaging with 18F-fluorodeoxyglucose (FDG) has been shown to be effective in distinguishing benign and malignant pulmonary disease. Mild elevations in FDG uptake with standardized uptake values (SUVs) less than 2.5 have been reported in benign lesions, including pneumonia. We report a case of presumed bacterial pneumonia with markedly elevated FDG uptake in a patient with a concomitant squamous cell carcinoma in the contralateral lung. SUV's were similar for both lesions (4.9 and 5.4). This case demonstrates an inflammatory etiology for false-positive FDG PET imaging in the evaluation of focal pulmonary abnormalities.
PET Facility, Department of Radiology, University of Pittsburgh Medical Center, Pennsylvania 15213-2582, USA.
L O
LO
Kapucu
C C
CC
Meltzer
D W
DW
Townsend
R J
RJ
Keenan
J D
JD
Luketich
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000150:complications / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005462:Fluorine Radioisotopes; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D008297:Male; D018410:Pneumonia, Bacterial / Q000150:complications / Q000000981:diagnostic imaging*; D019275:Radiopharmaceuticals; D014055:Tomography, Emission-Computed
D005462:Fluorine Radioisotopes; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18