title: Modic changes and spondylodiscitis at multiple levels of the thoracolumbar spine in a patient with ankylosing spondylitis.
abstract: OBJECTIVE
  Modic changes (MC) on magnetic resonance imaging (MRI) were described in 1988 by Modic et al. in a study among patients with chronic low back pain. Type 1 changes were shown to represent an acute inflammatory process while type 2 changes were found in chronic lesions. Since mechanical back pain is very common, it is often difficult to differentiate precisely the origin of the back pain in patients with ankylosing spondylitis (AS) based only on clinical assessment, laboratory findings and/or plain imaging.
  
  
  METHODS
  We report a male patient with AS who presented with low back pain. MRI revealed MCs and spondylodiscitis, an uncommon manifestation of AS, at multiple levels of the thoracolumbar spine.
  
  
  CONCLUSIONS
  We believe that MRI may provide key information in addition to the clinical, laboratory and plain radiological assessments and can help to guide physicians in decision-making when treating patients with AS.
authors.affiliation: Gazi University, Department of Physical Medicine and Rehabilitation, Ankara, Turkey. muratz@gmail.com
authors.forename: Murat
authors.initials: M
authors.lastname: Zinnuroğlu
authors.forename: Erkan
authors.initials: E
authors.lastname: Kaya
mesh_terms: D000328:Adult; D015299:Discitis / Q000150:complications / Q000473:pathology*; D006801:Humans; D017116:Low Back Pain / Q000473:pathology; D008159:Lumbar Vertebrae / Q000473:pathology; D055909:Magnetic Field Therapy; D008297:Male; D013167:Spondylitis, Ankylosing / Q000150:complications / Q000473:pathology*; D013904:Thoracic Vertebrae / Q000473:pathology