case_images: PMC7237124_01
case_images: MR at baseline (T0). Image of the lumbar spine in T2 sequences; red circle highlights the L5-S1 facet joint with evidence of osteoarthritis with effusion.
case_images: IMCRJ-13-171-g0001.jpg
case_images: PMC7237124_01_IMCRJ-13-171-g0001.jpg
case_images: F0001
case_images: After physical examination, MRI of the lumbar spine demonstrated FJS (L5-S1) but also revealed an arthrogenous cyst of the left facet of L5-S1 compressing the root of S1 (Figure 1).
case_images: MR after 6 months (T4). Image of the lumbar spine in T2 sequences; red circle highlights the L5-S1 facet joint with evidence of osteoarthritis without effusion.
case_images: IMCRJ-13-171-g0002.jpg
case_images: PMC7237124_01_IMCRJ-13-171-g0002.jpg
case_images: F0002
case_images: At T4, MRI of the lumbar region was done (Figure 2).