Hot-Clot Artifacts in the Lung Parenchyma on F-18 Fluorodeoxyglucose Positron Emission Tomography/CT due to Faulty Injection Techniques: Two Case Reports.
10.3348/kjr.2014.15.4.530
- Author:
Elif OZDEMIR
1
;
Nilufer Yildirim POYRAZ
;
Mutlay KESKIN
;
Zuhal KANDEMIR
;
Seyda TURKOLMEZ
Author Information
1. Department of Nuclear Medicine, Ataturk Training and Research Hospital, Ankara 06800, Turkey. ecingi@yahoo.com
- Publication Type:Case Reports
- Keywords:
FDG PET/CT;
Microembolism;
False positive
- MeSH:
*Artifacts;
False Positive Reactions;
Female;
Fluorodeoxyglucose F18/*administration & dosage/diagnostic use/pharmacokinetics;
Humans;
Lung/metabolism/radiography/*radionuclide imaging;
Male;
Middle Aged;
Multimodal Imaging/methods;
Positron-Emission Tomography/*methods;
Pulmonary Embolism/radiography/*radionuclide imaging;
Radiopharmaceuticals/*administration & dosage/diagnostic use/pharmacokinetics;
Tomography, X-Ray Computed/methods;
Young Adult
- From:Korean Journal of Radiology
2014;15(4):530-533
- CountryRepublic of Korea
- Language:English
-
Abstract:
F-18-fluorodeoxyglucose (FDG) positron emission tomography/CT is an important whole-body imaging tool in the oncology and widely utilized to stage and restage various malignancies. The findings of significant focal accumulation of FDG in the lung parenchyma in the absence of corresponding CT abnormalities are related to the lung microembolism and known as hot-clot artifacts. Herein we present two cases with focal FDG uptake in the lung parenchyma with no structural lesions on the CT scan and discuss the possible mechanisms.
