The conus is normal in appearance and terminates at the T12 level.
The cauda equina demonstrate clumping of the nerve roots seen commencing at the L2/L3 level and extending down to the sacral cul de sac.
Anatomical variant with sacralisation of the L5 vertebral body. Modic type 2 endplate changes are seen at the L4/L5 level.
T12/L1 & L1/2: Normal appearances.
L2/3: Asymmetric disc bulge extending beyond the left lateral aspect of the vertebral body. No central canal, subarticular recess or neural exit foraminal stenosis.
L3/4: Asymmetric disc bulge with minor central canal and left subarticular recess narrowing. No neural exit foraminal narrowing.
L4/5: Grade 1 retrolisthesis of L4 on L5. Minor symmetric disc bulge without central canal, subarticular or exit foraminal narrowing.
L5/S1: Normal appearances.
Conclusion:
Clumping of the nerve roots is a new finding compared to scan from 5 years ago (not shown) and is consistent with arachnoiditis. This may relate to any interval spinal intervention, infection or trauma during this period.