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Arachnoid Cyst
Kevin R. Moore, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Arachnoid cyst (AC)
              • Definitions

                • Arachnoid- or collagen-lined cavity containing cerebral spinal fluid (CSF) that does not communicate freely with ventricular system or subarachnoid space

              IMAGING

              • General Features

                • Radiographic Findings

                  • CT Findings

                    • MR Findings

                      • Nonvascular Interventions

                        • Ultrasonographic Findings

                          • Imaging Recommendations

                            DIFFERENTIAL DIAGNOSIS

                              PATHOLOGY

                              • General Features

                                • Staging, Grading, & Classification

                                  • Gross Pathologic & Surgical Features

                                    • Microscopic Features

                                      CLINICAL ISSUES

                                      • Presentation

                                        • Demographics

                                          • Natural History & Prognosis

                                            • Treatment

                                              DIAGNOSTIC CHECKLIST

                                              • Consider

                                                • Image Interpretation Pearls

                                                  Selected References

                                                  1. Messerer M et al: Cerebellopontine angle cyst. J Neurosurg Pediatr. 8(3):335; author reply 335-6, 2011
                                                  2. Muroi A et al: Giant syringobulbia associated with cerebellopontine angle arachnoid cyst and hydrocephalus. J Neurosurg Pediatr. 8(1):30-4, 2011
                                                  3. Baba T et al: Pulsatile wall movement of spinal arachnoid cyst deteriorates spinal cord symptoms: report of three cases. Acta Neurochir (Wien). 152(7):1245-9, 2010
                                                  4. Galarza M et al: Posterior fossa arachnoid cysts and cerebellar tonsillar descent: short review. Neurosurg Rev. 33(3):305-14; discussion 314, 2010
                                                  5. Algin O et al: Phase-contrast cine MRI versus MR cisternography on the evaluation of the communication between intraventricular arachnoid cysts and neighbouring cerebrospinal fluid spaces. Neuroradiology. 51(5):305-12, 2009
                                                  6. Kim MS et al: Syringomyelia associated with a spinal arachnoid cyst. J Korean Neurosurg Soc. 45(5):315-7, 2009
                                                  7. Wang YF et al: Heavily T2-weighted MR myelography vs CT myelography in spontaneous intracranial hypotension. Neurology. 73(22):1892-8, 2009
                                                  8. Mohindra S et al: Ventrally placed craniovertebral junction arachnoid cysts in children: a report of 2 cases and literature review. Surg Neurol. 68(1):85-8, 2007
                                                  9. Takahashi S et al: Magnetic resonance imaging-guided percutaneous fenestration of a cervical intradural cyst. Case report. J Neurosurg. 99(3 Suppl):313-5, 2003
                                                  10. Takeuchi A et al: Spinal arachnoid cysts associated with syringomyelia: report of two cases and a review of the literature. J Spinal Disord Tech. 16(2):207-11, 2003
                                                  11. Wang MY et al: Intradural spinal arachnoid cysts in adults. Surg Neurol. 60(1):49-55; discussion 55-6, 2003
                                                  12. Krings T et al: Diagnostic and therapeutic management of spinal arachnoid cysts. Acta Neurochir (Wien). 143(3):227-34; discussion 234-5, 2001
                                                  13. Lee HJ et al: Symptomatic spinal intradural arachnoid cysts in the pediatric age group: description of three new cases and review of the literature. Pediatr Neurosurg. 35(4):181-7, 2001
                                                  14. Silbergleit R et al: Imaging of spinal intradural arachnoid cysts: MRI, myelography and CT. Neuroradiology. 40(10):664-8, 1998
                                                  15. Rabb CH et al: Spinal arachnoid cysts in the pediatric age group: an association with neural tube defects. J Neurosurg. 77(3):369-72, 1992
                                                  16. Boisserie-Lacroix M et al: The value of MRI in the study of spinal extradural arachnoid cysts. Comput Med Imaging Graph. 14(3):221-3, 1990
                                                  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

                                                            • Diagnostic Checklist

                                                              TERMINOLOGY

                                                              • Abbreviations

                                                                • Arachnoid cyst (AC)
                                                              • Definitions

                                                                • Arachnoid- or collagen-lined cavity containing cerebral spinal fluid (CSF) that does not communicate freely with ventricular system or subarachnoid space

                                                              IMAGING

                                                              • General Features

                                                                • Radiographic Findings

                                                                  • CT Findings

                                                                    • MR Findings

                                                                      • Nonvascular Interventions

                                                                        • Ultrasonographic Findings

                                                                          • Imaging Recommendations

                                                                            DIFFERENTIAL DIAGNOSIS

                                                                              PATHOLOGY

                                                                              • General Features

                                                                                • Staging, Grading, & Classification

                                                                                  • Gross Pathologic & Surgical Features

                                                                                    • Microscopic Features

                                                                                      CLINICAL ISSUES

                                                                                      • Presentation

                                                                                        • Demographics

                                                                                          • Natural History & Prognosis

                                                                                            • Treatment

                                                                                              DIAGNOSTIC CHECKLIST

                                                                                              • Consider

                                                                                                • Image Interpretation Pearls

                                                                                                  Selected References

                                                                                                  1. Messerer M et al: Cerebellopontine angle cyst. J Neurosurg Pediatr. 8(3):335; author reply 335-6, 2011
                                                                                                  2. Muroi A et al: Giant syringobulbia associated with cerebellopontine angle arachnoid cyst and hydrocephalus. J Neurosurg Pediatr. 8(1):30-4, 2011
                                                                                                  3. Baba T et al: Pulsatile wall movement of spinal arachnoid cyst deteriorates spinal cord symptoms: report of three cases. Acta Neurochir (Wien). 152(7):1245-9, 2010
                                                                                                  4. Galarza M et al: Posterior fossa arachnoid cysts and cerebellar tonsillar descent: short review. Neurosurg Rev. 33(3):305-14; discussion 314, 2010
                                                                                                  5. Algin O et al: Phase-contrast cine MRI versus MR cisternography on the evaluation of the communication between intraventricular arachnoid cysts and neighbouring cerebrospinal fluid spaces. Neuroradiology. 51(5):305-12, 2009
                                                                                                  6. Kim MS et al: Syringomyelia associated with a spinal arachnoid cyst. J Korean Neurosurg Soc. 45(5):315-7, 2009
                                                                                                  7. Wang YF et al: Heavily T2-weighted MR myelography vs CT myelography in spontaneous intracranial hypotension. Neurology. 73(22):1892-8, 2009
                                                                                                  8. Mohindra S et al: Ventrally placed craniovertebral junction arachnoid cysts in children: a report of 2 cases and literature review. Surg Neurol. 68(1):85-8, 2007
                                                                                                  9. Takahashi S et al: Magnetic resonance imaging-guided percutaneous fenestration of a cervical intradural cyst. Case report. J Neurosurg. 99(3 Suppl):313-5, 2003
                                                                                                  10. Takeuchi A et al: Spinal arachnoid cysts associated with syringomyelia: report of two cases and a review of the literature. J Spinal Disord Tech. 16(2):207-11, 2003
                                                                                                  11. Wang MY et al: Intradural spinal arachnoid cysts in adults. Surg Neurol. 60(1):49-55; discussion 55-6, 2003
                                                                                                  12. Krings T et al: Diagnostic and therapeutic management of spinal arachnoid cysts. Acta Neurochir (Wien). 143(3):227-34; discussion 234-5, 2001
                                                                                                  13. Lee HJ et al: Symptomatic spinal intradural arachnoid cysts in the pediatric age group: description of three new cases and review of the literature. Pediatr Neurosurg. 35(4):181-7, 2001
                                                                                                  14. Silbergleit R et al: Imaging of spinal intradural arachnoid cysts: MRI, myelography and CT. Neuroradiology. 40(10):664-8, 1998
                                                                                                  15. Rabb CH et al: Spinal arachnoid cysts in the pediatric age group: an association with neural tube defects. J Neurosurg. 77(3):369-72, 1992
                                                                                                  16. Boisserie-Lacroix M et al: The value of MRI in the study of spinal extradural arachnoid cysts. Comput Med Imaging Graph. 14(3):221-3, 1990