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Semi-quantitative Assessment Using [18F]FDG Tracer in Patients with Severe Brain Injury
Published on: November 9, 2018
Transiently Altered Distribution of F-18 FDG in a Patient with Subacute Thyroiditis
Myoung Hyoun Kim1, Dae-Weung Kim1, Soon-Ah Park1
1Department of Nuclear Medicine, Wonkwang University School of Medicine and Institute of Wonkwang Medical Science, 895, Muwang-ro, Iksan, 54538 Republic of Korea.
Abstract:
F-18 fluorodeoxyglucose (FDG) is a highly influential radiotracer that provides valuable information in many cancer types. However, the normal biodistribution of F-18 FDG is often variable and can be altered by intrinsic or iatrogenic factors. We report a case of diffuse symmetrically increased skeletal muscle uptake and relatively decreased hepatic uptake on F-18 FDG PET/CT in a 57-year-old female with pulmonary adenocarcinoma. Detailed clinical evaluation and retrospective radiologic evaluation revealed that she had been diagnosed with subacute thyroiditis 2 weeks ago. After 6 weeks, F-18 FDG distribution was normalized at the follow-up PET/CT study.
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