Diagnostic Role of ¹⁸F-FECH-PET/CT Compared with Bone Scan in Evaluating the Prostate Cancer Patients Referring with Biochemical Recurrence

Figure 8

62-year old patient with confirmed PCA referred with PSA elevation in spite of ongoing AHT; he underwent both BS and ¹⁸F-FECH-PET/CT within 4 days. In the upper image, (A) bone scan sagittal plane, (B) CT thorax sagittal plane, (C) ¹⁸F-FECH-PET/CT sagittal plane. We see clearly a negative choline uptake in the osteoblastic metastases in sternum and thoracic spine, whereas bone scan demonstrates them. In the lower images, ¹⁸F-FECH-PET/CT shows a metastasis in the pubic body matching with an osteolytic bone lesion (A); at this site the bone scan shows a severe MDP uptake (a). Additionally, the bone scan shows a further positive finding in the inferior ramus of pubis (b) corresponding with sclerotic metastasis however without choline uptake (B). This image shows the osteolytic metastasis was kept out of AHT impact.