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Indian J Nucl Med. 2011 Apr;26(2):123-9. doi: 10.4103/0972-3919.90271.

Spectrum of brain abnormalities detected on whole body F-18 FDG PET/CT in patients undergoing evaluation for non-CNS malignancies.

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Division of PET Imaging, Molecular Imaging and Research Centre, MIRC, Institute of Nuclear Medicine and Allied Sciences, Lucknow Road, Delhi, India.


We present the pattern of metabolic brain abnormalities detected in patients undergoing whole body (WB) F-18 flurodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) examination for non-central nervous system (CNS) malignancies. Knowledge of the PET/CT appearance of various intracranial metabolic abnormalities enables correct interpretation of PET scans in oncological patients where differentiation of metastasis from benign intracranial pathologies is important and improves specificity of the PET study. A complete clinical history and correlation with CT and MRI greatly helps in arriving at a correct imaging diagnosis.


Arachnoid cyst; F-18 FDG; PET/CT; brain metastases; infarct

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