Fig. 1
Case#1, 72-yr old man with prostate cancer treated with radical prostatectomy with radiological evidence of bone metastasis. [18F]fluorocholine PET/CT shows tracer uptake in the peri-hilar right lung region (a, MIP arrow) and in the left side of the pelvis. Transaxial images (b) confirm a metabolically active area in a peri-hilar right lung nodule subsequently diagnosed as non small cell lung cancer. Superimposed transaxial PET/CT images (c, bone window; d, soft tissue window) show [18F]fluorocholinee uptake in a vast metastatic lesion involving the left pubis, the left ischium and extending into the adjacent soft tissues. Bone metastases biopsy resulted inconclusive (metastases from adenocarcinoma of unknown origin)