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Retroodontoid Pseudotumor
Cheryl A. Petersilge, MD, MBA
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Synonyms

              • Pseudopannus
            • Definitions

              • Pannus-like soft tissue, but not related to rheumatoid arthritis

            IMAGING

            • General Features

              • Radiographic Findings

                • CT Findings

                  • MR Findings

                    • Myelography

                      • Imaging Recommendations

                        DIFFERENTIAL DIAGNOSIS

                          PATHOLOGY

                          • Gross Pathologic & Surgical Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      Selected References

                                      1. Tanaka S et al: Retro-odontoid pseudotumor without atlantoaxial subluxation. J Clin Neurosci. 17(5):649-52, 2010
                                      2. Chikuda H et al: Radiographic analysis of the cervical spine in patients with retro-odontoid pseudotumors. Spine (Phila Pa 1976). 34(3):E110-4, 2009
                                      3. Matsumoto T et al: Enlarging retro-odontoid pseudotumor after expanding cervical laminoplasty in the presence of kyphosis. Spine J. 6(3):228-32, 2006
                                      4. Yamaguchi I et al: Remarkable reduction or disappearance of retroodontoid pseudotumors after occipitocervical fusion. Report of three cases. J Neurosurg Spine. 5(2):156-60, 2006
                                      5. Jun BY et al: Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis. Spine (Phila Pa 1976). 27(10):E266-70, 2002
                                      6. Sze G et al: Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging studies. Radiology. 161(2):391-4, 1986
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Top Differential Diagnoses

                                            • Pathology

                                              • Clinical Issues

                                                TERMINOLOGY

                                                • Synonyms

                                                  • Pseudopannus
                                                • Definitions

                                                  • Pannus-like soft tissue, but not related to rheumatoid arthritis

                                                IMAGING

                                                • General Features

                                                  • Radiographic Findings

                                                    • CT Findings

                                                      • MR Findings

                                                        • Myelography

                                                          • Imaging Recommendations

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • Gross Pathologic & Surgical Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Consider

                                                                          Selected References

                                                                          1. Tanaka S et al: Retro-odontoid pseudotumor without atlantoaxial subluxation. J Clin Neurosci. 17(5):649-52, 2010
                                                                          2. Chikuda H et al: Radiographic analysis of the cervical spine in patients with retro-odontoid pseudotumors. Spine (Phila Pa 1976). 34(3):E110-4, 2009
                                                                          3. Matsumoto T et al: Enlarging retro-odontoid pseudotumor after expanding cervical laminoplasty in the presence of kyphosis. Spine J. 6(3):228-32, 2006
                                                                          4. Yamaguchi I et al: Remarkable reduction or disappearance of retroodontoid pseudotumors after occipitocervical fusion. Report of three cases. J Neurosurg Spine. 5(2):156-60, 2006
                                                                          5. Jun BY et al: Retro-odontoid pseudotumor in diffuse idiopathic skeletal hyperostosis. Spine (Phila Pa 1976). 27(10):E266-70, 2002
                                                                          6. Sze G et al: Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging studies. Radiology. 161(2):391-4, 1986