a, b A 75-year-old man with advanced metastatic prostate cancer. Sagittal T2-weighted MR images of the lumbar spine a 2015 (1.5 Tesla, TR 3490 ms, TE 88 ms, slice thickness 4 mm) and b 2017 (1.5 Tesla, TR 3720 ms, TE 112.92 ms, slice thickness 4 mm). The images show increased interval accumulation of epidural fat especially in the lower lumbar and sacral region