What does this mean?
MRI OF THE LUMBAR SPINE WITHOUT CONTRAST 05/16/2016 CLINICAL HISTORY: Patient had a fall 2 years ago, patient reports a history of sacral fracture. Patient has low back pain. TECHNIQUE: Sagittal T1, proton density and fat-suppressed T2-weighted images were obtained of the lumbar spine In addition axial T2-weighted images were obtained from L1 to S1 thin cut axial T1 weighted images were obtained angled through the interspaces from L3 to S1. There are no prior imaging studies from Baptist Health Louisville for comparison. FINDINGS: The distal thoracic cord and the conus is normal in signal intensity. The conus terminates at the L1 lumbar level which is normal. The T11-12, T12-L1, L1-L2, L2-L3 disc spaces and facets are normal with no canal or foraminal narrowing from T11 to L3. At L3-4, the disc space is normal. There is mild bilateral facet overgrowth, there is no central canal or foraminal narrowing at L3-4. At L4-5, there is mild bilateral facet overgrowth. There is posterior annular tear and there is broad-based posterior central bulging or minimally protruding disc material which only mildly indents the anterior aspect of thecal sac minimally narrowing the thecal sac comes close to the anterior medial margin of the traversing right L5 nerve root but does not abut or compress it. There is no significant lateral recess or foraminal narrowing at L4-5. At L5-S1, there is only minimal bilateral facet overgrowth. There is mild disc space narrowing, diffuse disc desiccation there is a 4 mm retrolisthesis of L5 with respect to S1 with uncovering of the posterior inferior aspect of L5-S1 disc space and there is posterior annular tear and there is uncovered protruding disc material extending diffusely along the posterior superior endplate of S1 that contacts the anteromedial aspect of the traversing S1 nerve roots but does not displace or compress them. There is no significant canal or lateral recess narrowing, there is no foraminal narrowing at L5-S1. There is an ovoid area of rather discrete T1 low signal T2 high signal involving the central aspect of the S3 sacral segment seen on the sagittal images that measures 13 mm in craniocaudal dimension 6 mm in anterior posterior dimension. No axial images were obtained through this area. It is an indeterminate but benign finding, may be a tiny bone cyst. It is incompletely assessed on this exam and given the history of prior sacral fracture if there is any outside sacral imaging I will be glad to addend my report with comparison or at least correlate clinically with outside sacral imaging. The remainder of the lumbar spine MRI is unremarkable. This report was finalized on