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Updated: Jun 16, 2026

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Published on: July 21, 2018
F-18 FDG PET/CT imaging of a Leydig cell tumor
Gilho Lee1, Jai Hyuen Lee, Won Ae Lee
1Department of Urology, Dankook University College of Medicine, Cheonan, Republic of Korea.
Abstract:
We report the F-18 fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) findings of a patient with a testicular Leydig cell tumor. A 43-year-old man was referred for whole body FDG PET/CT imaging for health care screening. FDG PET/CT imaging demonstrated the presence of a focal hypermetabolic lesion in the right testicle and no specific findings in other areas. Based on the preoperative impression, right testis-sparing surgery was attempted. The tumor was pathologically confirmed as a Leydig cell tumor.
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