Figure 1.

Patient with prostate cancer and suspected bony metastases showing low-grade uptake involving the right lateral aspect of the posterior elements of L4/L5 level. On the single photon emission CT-CT images of the lumbar sacral spine, appearances of L4/L5 correspond to the right-sided facet joint level, where there are degenerative changes noted on the CT study. Scan appearances are in keeping with degenerative changes. There is no evidence of bony metastases.