Coronal T2- weighted images shows diffuse abnormal circumferential thickening of thecal sac with blooming artefact, concordant with dural calcifications seen on CT images.
Axial T2-weighted images show displacement of the nerve roots of the cauda equina in the initial images. Abnormal thickening and clumping of the cauda equina with intrathecal hypointense signal abnormality seen at distal lumbar, consistent with sequelae of arachnoiditis.
Well defined hyperintense lesion within L4 vertebra body in keeping with a vertebral hemangioma.
Based on CT and MRI findings, features consistent with arachnoiditis ossificans.