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Arachnoiditis Ossificans
Jeffrey S. Ross, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Definitions

            • Intradural ossification associated with post-inflammation nerve root clumping, arachnoid adhesions

          IMAGING

          • General Features

            • Radiographic Findings

              • CT Findings

                • MR Findings

                  • Nonvascular Interventions

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    • Treatment

                                      DIAGNOSTIC CHECKLIST

                                      • Consider

                                        Selected References

                                        1. Maulucci CM et al: Arachnoiditis ossificans: clinical series and review of the literature. Clin Neurol Neurosurg. 124:16-20, 2014
                                        2. Bakhsh WR et al: Arachnoiditis ossificans after revision adolescent idiopathic scoliosis surgery: a 22-year follow-up and review. Spine (Phila Pa 1976). 38(18):E1166-70, 2013
                                        3. Chan CC et al: Arachnoiditis ossificans. Hong Kong Med J. 15(2):146-8, 2009
                                        4. Papavlasopoulos F et al: Arachnoiditis ossificans with progressive syringomyelia and spinal arachnoid cyst. J Clin Neurosci. 14(6):572-6, 2007
                                        5. Faure A et al: Arachnoiditis ossificans of the cauda equina. Case report and review of the literature. J Neurosurg. 97(2 Suppl):239-43, 2002
                                        6. Frizzell B et al: Arachnoiditis ossificans: MR imaging features in five patients. AJR Am J Roentgenol. 177(2):461-4, 2001
                                        7. Long DM: Chronic adhesive spinal arachnoiditis: pathogenesis, prognosis, and treatment. Neurosurgery Quarterly. 2:296-318, 1992
                                        Related Anatomy
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                                        Related Differential Diagnoses
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                                        References
                                        Tables

                                        Tables

                                        KEY FACTS

                                        • Terminology

                                          • Imaging

                                            • Pathology

                                              • Clinical Issues

                                                TERMINOLOGY

                                                • Definitions

                                                  • Intradural ossification associated with post-inflammation nerve root clumping, arachnoid adhesions

                                                IMAGING

                                                • General Features

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • MR Findings

                                                        • Nonvascular Interventions

                                                          • Imaging Recommendations

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • General Features

                                                                • Gross Pathologic & Surgical Features

                                                                  • Microscopic Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Demographics

                                                                        • Natural History & Prognosis

                                                                          • Treatment

                                                                            DIAGNOSTIC CHECKLIST

                                                                            • Consider

                                                                              Selected References

                                                                              1. Maulucci CM et al: Arachnoiditis ossificans: clinical series and review of the literature. Clin Neurol Neurosurg. 124:16-20, 2014
                                                                              2. Bakhsh WR et al: Arachnoiditis ossificans after revision adolescent idiopathic scoliosis surgery: a 22-year follow-up and review. Spine (Phila Pa 1976). 38(18):E1166-70, 2013
                                                                              3. Chan CC et al: Arachnoiditis ossificans. Hong Kong Med J. 15(2):146-8, 2009
                                                                              4. Papavlasopoulos F et al: Arachnoiditis ossificans with progressive syringomyelia and spinal arachnoid cyst. J Clin Neurosci. 14(6):572-6, 2007
                                                                              5. Faure A et al: Arachnoiditis ossificans of the cauda equina. Case report and review of the literature. J Neurosurg. 97(2 Suppl):239-43, 2002
                                                                              6. Frizzell B et al: Arachnoiditis ossificans: MR imaging features in five patients. AJR Am J Roentgenol. 177(2):461-4, 2001
                                                                              7. Long DM: Chronic adhesive spinal arachnoiditis: pathogenesis, prognosis, and treatment. Neurosurgery Quarterly. 2:296-318, 1992