a–c. CT MPR parasagittal (a), sagittal (b), MR FSE T2 sagittal (c). Anterior C1–C2 grade II listesis (a–b) and atlas-odontoid arthrosis; restriction of foramen magnum and of bulb-medullary district that shows T2 hyperintensity for compressive alteration (c). Multiple disk protrusions in C3–C7, interapophyseal arthrosis with yellow ligaments hypertrophy: these alterations cause obliteration of epidural space anterior and posterior