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Arachnoid Cyst
Anne M. Kennedy, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Abbreviations

              • Arachnoid cyst (AC)
            • Definitions

              • Cerebrospinal fluid (CSF) collection enclosed within layers of arachnoid

            IMAGING

            • General Features

              • Ultrasonographic Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Staging, Grading, & Classification

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Image Interpretation Pearls

                                      Selected References

                                      1. De Keersmaecker B et al: Outcome of 12 antenatally diagnosed fetal arachnoid cysts: Case series and review of the literature. Eur J Paediatr Neurol. 19(2):114-121, 2015
                                      2. Goksu E et al: Spontaneous shrinkage of a suprasellar arachnoid cyst diagnosed with prenatal sonography and fetal magnetic resonance imaging: case report and review of the literature. Turk Neurosurg. 25(4):670-3, 2015
                                      3. Nadeem S et al: Renin angiotensin system blocker fetopathy: a Midwest Pediatric Nephrology Consortium report. J Pediatr. 167(4):881-5, 2015
                                      4. Sanapo L et al: Teaching neuroimages: Giant fetal arachnoid cyst with favorable neurologic outcome. Neurology. 84(20):e160-1, 2015
                                      5. Drazin D et al: Prenatal diagnosis and management of a huge infratentorial/supratentorial multiloculated arachnoid cystic malformation in an infant. Pediatr Neurol. 48(6):481-2, 2013
                                      6. Lee JY et al: Enlarging arachnoid cyst: a false alarm for infants. Childs Nerv Syst. 28(8):1203-11, 2012
                                      7. Miric Tesanic D et al: Prenatal diagnosis of ambient cistern cyst. Ultraschall Med. 33(7):E350-1, 2012
                                      8. Al-Holou WN et al: Prevalence and natural history of arachnoid cysts in children. J Neurosurg Pediatr. 5(6):578-85, 2010
                                      9. Cinalli G et al: Neuroendoscopic treatment of arachnoid cysts of the quadrigeminal cistern: a series of 14 cases. J Neurosurg Pediatr. 6(5):489-97, 2010
                                      10. Gedikbasi A et al: Prenatal diagnosis of a suprasellar arachnoid cyst with 2- and 3-dimensional sonography and fetal magnetic resonance imaging: difficulties in management and review of the literature. J Ultrasound Med. 29(10):1487-93, 2010
                                      11. Columbano L et al: Prenatal diagnosed cyst of the quadrigeminal cistern in Aicardi syndrome. Childs Nerv Syst. 25(5):521-2, 2009
                                      12. Fuchs F et al: Prenatal and postnatal follow-up of a fetal interhemispheric arachnoid cyst with partial corpus callosum agenesis, asymmetric ventriculomegaly and localized polymicrogyria. Case report. Fetal Diagn Ther. 24(4):385-8, 2008
                                      13. Stein QP et al: Prenatally diagnosed trisomy 20 mosaicism associated with arachnoid cyst of basal cistern. Prenat Diagn. 28(12):1169-70, 2008
                                      14. Yang SH et al: Surgical decompression of supratentorial arachnoid cysts in pediatric patients younger than one year. Pediatr Neurosurg. 44(6):465-70, 2008
                                      15. Chen CP: Prenatal diagnosis of arachnoid cysts. Taiwan J Obstet Gynecol. 46(3):187-98, 2007
                                      16. Osborn AG et al: Intracranial cysts: radiologic-pathologic correlation and imaging approach. Radiology. 239(3):650-64, 2006
                                      17. Arriola G et al: Familial arachnoid cysts. Pediatr Neurol. 33(2):146-8, 2005
                                      18. Pierre-Kahn A et al: Malformative intracranial cysts: diagnosis and outcome. Childs Nerv Syst. 19(7-8):477-83, 2003
                                      19. Gosalakkal JA: Intracranial arachnoid cysts in children: a review of pathogenesis, clinical features, and management. Pediatr Neurol. 26(2):93-8, 2002
                                      20. Leistikow EA et al: Isolated large third-trimester intracranial cyst on fetal ultrasound: fact or fiction? Pediatrics. 106(4):844-8, 2000
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Top Differential Diagnoses

                                            • Clinical Issues

                                              • Diagnostic Checklist

                                                TERMINOLOGY

                                                • Abbreviations

                                                  • Arachnoid cyst (AC)
                                                • Definitions

                                                  • Cerebrospinal fluid (CSF) collection enclosed within layers of arachnoid

                                                IMAGING

                                                • General Features

                                                  • Ultrasonographic Findings

                                                    • MR Findings

                                                      • Imaging Recommendations

                                                        DIFFERENTIAL DIAGNOSIS

                                                          PATHOLOGY

                                                          • General Features

                                                            • Staging, Grading, & Classification

                                                              • Microscopic Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Image Interpretation Pearls

                                                                          Selected References

                                                                          1. De Keersmaecker B et al: Outcome of 12 antenatally diagnosed fetal arachnoid cysts: Case series and review of the literature. Eur J Paediatr Neurol. 19(2):114-121, 2015
                                                                          2. Goksu E et al: Spontaneous shrinkage of a suprasellar arachnoid cyst diagnosed with prenatal sonography and fetal magnetic resonance imaging: case report and review of the literature. Turk Neurosurg. 25(4):670-3, 2015
                                                                          3. Nadeem S et al: Renin angiotensin system blocker fetopathy: a Midwest Pediatric Nephrology Consortium report. J Pediatr. 167(4):881-5, 2015
                                                                          4. Sanapo L et al: Teaching neuroimages: Giant fetal arachnoid cyst with favorable neurologic outcome. Neurology. 84(20):e160-1, 2015
                                                                          5. Drazin D et al: Prenatal diagnosis and management of a huge infratentorial/supratentorial multiloculated arachnoid cystic malformation in an infant. Pediatr Neurol. 48(6):481-2, 2013
                                                                          6. Lee JY et al: Enlarging arachnoid cyst: a false alarm for infants. Childs Nerv Syst. 28(8):1203-11, 2012
                                                                          7. Miric Tesanic D et al: Prenatal diagnosis of ambient cistern cyst. Ultraschall Med. 33(7):E350-1, 2012
                                                                          8. Al-Holou WN et al: Prevalence and natural history of arachnoid cysts in children. J Neurosurg Pediatr. 5(6):578-85, 2010
                                                                          9. Cinalli G et al: Neuroendoscopic treatment of arachnoid cysts of the quadrigeminal cistern: a series of 14 cases. J Neurosurg Pediatr. 6(5):489-97, 2010
                                                                          10. Gedikbasi A et al: Prenatal diagnosis of a suprasellar arachnoid cyst with 2- and 3-dimensional sonography and fetal magnetic resonance imaging: difficulties in management and review of the literature. J Ultrasound Med. 29(10):1487-93, 2010
                                                                          11. Columbano L et al: Prenatal diagnosed cyst of the quadrigeminal cistern in Aicardi syndrome. Childs Nerv Syst. 25(5):521-2, 2009
                                                                          12. Fuchs F et al: Prenatal and postnatal follow-up of a fetal interhemispheric arachnoid cyst with partial corpus callosum agenesis, asymmetric ventriculomegaly and localized polymicrogyria. Case report. Fetal Diagn Ther. 24(4):385-8, 2008
                                                                          13. Stein QP et al: Prenatally diagnosed trisomy 20 mosaicism associated with arachnoid cyst of basal cistern. Prenat Diagn. 28(12):1169-70, 2008
                                                                          14. Yang SH et al: Surgical decompression of supratentorial arachnoid cysts in pediatric patients younger than one year. Pediatr Neurosurg. 44(6):465-70, 2008
                                                                          15. Chen CP: Prenatal diagnosis of arachnoid cysts. Taiwan J Obstet Gynecol. 46(3):187-98, 2007
                                                                          16. Osborn AG et al: Intracranial cysts: radiologic-pathologic correlation and imaging approach. Radiology. 239(3):650-64, 2006
                                                                          17. Arriola G et al: Familial arachnoid cysts. Pediatr Neurol. 33(2):146-8, 2005
                                                                          18. Pierre-Kahn A et al: Malformative intracranial cysts: diagnosis and outcome. Childs Nerv Syst. 19(7-8):477-83, 2003
                                                                          19. Gosalakkal JA: Intracranial arachnoid cysts in children: a review of pathogenesis, clinical features, and management. Pediatr Neurol. 26(2):93-8, 2002
                                                                          20. Leistikow EA et al: Isolated large third-trimester intracranial cyst on fetal ultrasound: fact or fiction? Pediatrics. 106(4):844-8, 2000