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KMID : 1148920100440030228
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Nuclear Medicine and Molecular Imaging
2010 Volume.44 No. 3 p.228 ~ p.229
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Hypermetabolism of Skeletal Muscles Following Sexual Activity: A Normal Variation
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Choi Byung-Wook
Kim Sung-Hoon
Kim Hae-Won
Won Kyoung-Sook
Zeon Seok-Kil
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Abstract
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A 46-year-old man with early gastric cancer at the gastric antrum underwent an F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)-computer tomography (CT) scan for staging. No definite abnormal FDG uptake of the stomach was shown. Incidentally, variable FDG uptake at the bilateral serratus muscles, abdominal muscles and muscles of both thighs (Fig. 1) was observed. He had no significant past medical history except recently diagnosed stomach cancer. On personal interview, he described having had sexual activity the night before the F-18 FDG PET/CT scan, although he was aware of needing to avoid physical activity before a PET scan. The F-18 FDG PET/CT scan was done at 2:00 p.m. Therefore, the hypermetabolism of individual skeletal muscles following sexual activity lasted over 12 h. This case illustrates the hypermetabolism of skeletal muscles following sexual activity as a normal variation.
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KEYWORD
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Positron emission tomography/computed tomography (PET/CT), Fluorodeoxyglucose (FDG), Skeletal muscle, Sexual activity, Physiological FDG uptake
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