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Lung Metastasis From Prostate Cancer Revealed by 18F-FDG PET/CT Without Osseous Metastasis on Bone Scan
Hung-Yi Su1, Meng-Lin Chen, Ping-Ju Hsieh
1From the *Department of Nuclear Medicine, Cathay General Hospital, Taipei; †School of Medicine, Fu Jen Catholic University, New Taipei City; ‡Department of Urology, Cathay General Hospital, Taipei, Taiwan.
Abstract:
A 54-year-old man, a case of prostate cancer, underwent radical prostatectomy and hormone therapy. Elevated prostate-specific antigen level developed 7 years later, but pelvic MRI and bone scan revealed negative results. Radiotherapy was performed under the suspicion of local recurrence but in vain. F-FDG PET/CT performed 1 more year later showed 3 FDG-avid lesions in the right lung and mediastinum. Lung and lymph node metastases were proved with video-assisted thoracoscopic surgery. Bone scan remained negative at that time.
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