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Fig1: Spinal CT scan: Sagittal (a), axial (b,c) showing a vacuum disc
phenomenon and moderate protrusion at L5-S1 space. A gas bubble was
noticed in the right lateral recess at L4-L5 with probable evidence of
right L4 root compression
Fig 2: Spinal CT scan axial showing foraminal disc protrusion with
intradiscal gas compressing the left L5 nerve root