Arachnoiditis ossificans: MR imaging features in five patients

AJR Am J Roentgenol. 2001 Aug;177(2):461-4. doi: 10.2214/ajr.177.2.1770461.


Objective: The purpose of this article is to illustrate the appearance of arachnoiditis ossificans on MR imaging and discuss the implications this diagnosis has on treatment.

Conclusion: In patients with arachnoiditis ossificans, the MR imaging findings are of linear or masslike intrathecal lesions, which generally have some hyperintensity on T1- weighted sequences and are hyper- or hypointense on T2-weighted images, in the setting of arachnoiditis.

MeSH terms

  • Adult
  • Aged
  • Arachnoiditis / diagnostic imaging
  • Arachnoiditis / pathology*
  • Female
  • Humans
  • Lumbar Vertebrae / diagnostic imaging
  • Lumbar Vertebrae / pathology
  • Male
  • Middle Aged
  • Ossification, Heterotopic / diagnostic imaging
  • Ossification, Heterotopic / pathology
  • Retrospective Studies
  • Tomography, X-Ray Computed