title: Arachnoiditis ossificans.
mesh_terms: D000328:Adult; D001100:Arachnoiditis / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D009999:Ossification, Heterotopic / Q000000981:diagnostic imaging*; D013115:Spinal Canal; D014057:Tomography, X-Ray Computed