Hello I has a MRI on Friday and this is part of the report can you tell what it means.

L5-S1 Small board disc bulge. Minimal ligamentum flavum hypertrophy. Small amount of fluid in left facet joint. There is prominent epidural fat, with a mildly trefoil configuration of the thecal sac. At the level of disc space AP thecal sac diameter measures 6mm with prominent circumferentially surrounding epidural fat. The amount of surrounding epidural fat has increased and the trefoil configuration of the thecal sac is new . No neural foraminal narrowing.