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Which disc is affected?
The L5/S1 disc is protruding, narrowing the whole spinal canal and left exit tract for the nerve roots. There is a smaller protrusion at the disc level above but this will not be causing the patient's presentation.
Large central disc protrusion at L5/S1 compressing the cauda equina. The epidural fat is nearly completely effaced.
Noncompressive small central disc protrusion at L4/L5.
Degenerate fatty signal at the affected endplates, otherwise normal marrow signal
Normal distal cord and conus.
Large central disc protrusion at L5/S1 with cauda equina compression.