We present the case of an 81-year-old man with a newly diagnosed prostate cancer who showed different findings on two distinct positron emission tomography/ computed tomography (PET/CT) imaging modalities. Specifically, Ga-68 prostate-specific membrane antigen (PSMA)-11 PET/CT identified three foci of increased tracer uptake in the prostate, liver, and left upper lobe of lung, whereas an abnormal uptake in the prostate and left upper lobe of lung was evident on F18-FDG PET/CT. Subsequent lung lobectomy revealed the presence of a well-differentiated adenocarcinoma of pulmonary origin. Our case demonstrates that F-18 FDG PET/CT can provide complementary diagnostic information in a complex clinical scenario like double cancer.
一個新診斷為攝護腺癌的81歲男子接受Ga-68 prostate specific membrane antigen-11 positron emission tomography/computed tomography(PET/CT)檢查,顯示3處示蹤劑攝取增加的病灶,分別位於攝護腺、肝和左上肺葉,同時F-18 fludeoxyglucose(FDG)PET/CT顯示攝護腺及左上肺葉病灶攝取增加,隨後的肺葉切除術診斷為肺部原發分化良好腺癌。此案例顯示F-18 FDG PET/CT的結果可在如雙重癌症的臨床情境中提供輔助。
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