Nuclear Medicine and Molecular Imaging  2009;43(5):505-507

Sequential Change of Hypometabolic Metastasis from Non-small-cell Lung Cancer on Brain FDG-PET/CT.

Soon Ah PARK 1 ; Sei Hoon YANG ; Chung Yong YANG ; Keum Ha CHOI

Affiliations

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Keywords

F-18 fluorodeoxyglucose; positron emission tomography/computed tomography; cerebral metastasis; non-small-cell lung cancer

Country

Republic of Korea

Language

Korean

Abstract

A 60-year-old woman, who had non-small-cell lung cancer (NSCLC) in left lower lobe underwent brain F-18 fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) for evaluation of cerebral metastasis. On follow-up FDG-PET/CT, only hypometaolic lesion was detected and progressed in right frontal lobe at 6 months and 10 months, later. Hypermetabolic metastasis was not detected even at last scan time of FDG-PET/CT. Brain MRI showed brain metastasis in right frontal lobe. As might be expected, the physician should take cerebral metastasis into consideration even though there is only hypometabolic change on subsequent FDG-PET/CT in patients with NSCLC.