spinal epidural lipomatosis mri lumbar spine showing arthritis and lumbar spinal epidural lipomatosis a epidural lipomatosis radiology key epidural lipomatosis radiology key spinal epidural lipomatosis epidural lipomatosis with cauda equina sagittal t2 weighted mri shows epidural lumbar epidural lipomatosis spinal epidural lipomatosis lumbar epidural lipomatosis spinal epidural lipomatosis lumbar spinal epidural lipomatosis