2-year-old male with sacral dimple. There is a fat signal lesion that measures up to 25 mm in length along the posterior aspect of the conus medullaris, which is slightly indented by the lesions and terminates at the L2 level. The rest of the spinal cord displays normal signal and morphology. However, there is an additional fat signal lesion that measures up to 3 mm in length along the filum terminale at the L3-4 level. There appears to be deficiency of the posterior elements of L5 and portions of the sacral spine. However, the reported overlying dimple is not apparent. The prone images are degraded by patient motion, thereby limiting the assessment of cord mobility. The vertebral column alignment is within normal limits. The vertebral body and disc space heights are preserved. The vertebral bone marrow signal is unremarkable. There is no significant spinal canal stenosis. The paravertebral soft tissues are unremarkable.
1. A lipoma along the posterior aspect of the conus medullaris measures up to 25 mm and a lipoma along the filum terminale at the L3-4 level measures up to 3 mm.2. The prone images are degraded by patient motion, thereby limiting the assessment of cord mobility.3. Apparent deficiency of the posterior elements of L5 and in portions of the sacral spine may indicate dysraphism. I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.