link
Bookmarks
Interhemispheric Cyst/AVID
Karen Y. Oh, MD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Log inSubscribe
0
6
2
2

KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            • Diagnostic Checklist

              TERMINOLOGY

              • Abbreviations

                • Interhemispheric cyst (IHC)
                • Asymmetric ventriculomegaly with interhemispheric cyst and dysgenesis of corpus callosum (AVID)
              • Synonyms

                • Ependymal cyst
                • Neuroepithelial cyst
                • Glioependymal cyst
              • Definitions

                • Intracranial cyst centered near midline/interhemispheric fissure
                  • ± communication with ventricles
                    • Type 1 cysts communicate with ventricular system
                    • Type 2 cysts are intraparenchymal

              IMAGING

              • General Features

                • Ultrasonographic Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        Selected References

                                        1. Cagneaux M et al: Agenesis of the corpus callosum with interhemispheric cyst, associated with aberrant cortical sulci and without underlying cortical dysplasia. Ultrasound Obstet Gynecol. 42(5):603-5, 2013
                                        2. Paladini D et al: Agenesis of the fetal corpus callosum: sonographic signs change with advancing gestational age. Ultrasound Obstet Gynecol. 42(6):687-90, 2013
                                        3. Oh KY et al: Asymmetric ventriculomegaly, interhemispheric cyst, and dysgenesis of the corpus callosum (AVID): an imaging triad. J Ultrasound Med. 31(11):1811-20, 2012
                                        4. Winter TC et al: The cavum septi pellucidi: why is it important? J Ultrasound Med. 29(3):427-44, 2010
                                        5. Wong SK et al: Supratentorial abnormalities in the Chiari II malformationa, III: The interhemispheric cyst. J Ultrasound Med. 28(8):999-1006, 2009
                                        6. Moriyama E et al: Interhemispheric multiloculated ependymal cyst with dysgenesis of the corpus callosum: a case in a preterm fetus. Childs Nerv Syst. 23(7):807-13, 2007
                                        7. Mühler MR et al: Fetal MRI demonstrates glioependymal cyst in a case of sonographic unilateral ventriculomegaly. Pediatr Radiol. 37(4):391-5, 2007
                                        8. Obaldo RE et al: Congenital glioependymal cyst presenting with severe proptosis. AJNR Am J Neuroradiol. 28(6):999-1000, 2007
                                        9. Utsunomiya H et al: Midline cystic malformations of the brain: imaging diagnosis and classification based on embryologic analysis. Radiat Med. 24(6):471-81, 2006
                                        10. Pavone P et al: Callosal anomalies with interhemispheric cyst: expanding the phenotype. Acta Paediatr. 94(8):1066-72, 2005
                                        11. Barkovich AJ et al: Callosal agenesis with cyst: a better understanding and new classification. Neurology. 56(2):220-7, 2001
                                        12. Sundaram C et al: Cysts of the central nervous system: a clinicopathologic study of 145 cases. Neurol India. 49(3):237-42, 2001
                                        13. Tange Y et al: Interhemispheric glioependymal cyst associated with agenesis of the corpus callosum--case report. Neurol Med Chir (Tokyo). 40(10):536-42, 2000
                                        Related Anatomy
                                        Loading...
                                        Related Differential Diagnoses
                                        Loading...
                                        References
                                        Tables

                                        Tables

                                        KEY FACTS

                                        • Terminology

                                          • Imaging

                                            • Top Differential Diagnoses

                                              • Pathology

                                                • Clinical Issues

                                                  • Diagnostic Checklist

                                                    TERMINOLOGY

                                                    • Abbreviations

                                                      • Interhemispheric cyst (IHC)
                                                      • Asymmetric ventriculomegaly with interhemispheric cyst and dysgenesis of corpus callosum (AVID)
                                                    • Synonyms

                                                      • Ependymal cyst
                                                      • Neuroepithelial cyst
                                                      • Glioependymal cyst
                                                    • Definitions

                                                      • Intracranial cyst centered near midline/interhemispheric fissure
                                                        • ± communication with ventricles
                                                          • Type 1 cysts communicate with ventricular system
                                                          • Type 2 cysts are intraparenchymal

                                                    IMAGING

                                                    • General Features

                                                      • Ultrasonographic Findings

                                                        • MR Findings

                                                          • Imaging Recommendations

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • General Features

                                                                • Gross Pathologic & Surgical Features

                                                                  • Microscopic Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Natural History & Prognosis

                                                                        • Treatment

                                                                          DIAGNOSTIC CHECKLIST

                                                                          • Consider

                                                                            • Image Interpretation Pearls

                                                                              Selected References

                                                                              1. Cagneaux M et al: Agenesis of the corpus callosum with interhemispheric cyst, associated with aberrant cortical sulci and without underlying cortical dysplasia. Ultrasound Obstet Gynecol. 42(5):603-5, 2013
                                                                              2. Paladini D et al: Agenesis of the fetal corpus callosum: sonographic signs change with advancing gestational age. Ultrasound Obstet Gynecol. 42(6):687-90, 2013
                                                                              3. Oh KY et al: Asymmetric ventriculomegaly, interhemispheric cyst, and dysgenesis of the corpus callosum (AVID): an imaging triad. J Ultrasound Med. 31(11):1811-20, 2012
                                                                              4. Winter TC et al: The cavum septi pellucidi: why is it important? J Ultrasound Med. 29(3):427-44, 2010
                                                                              5. Wong SK et al: Supratentorial abnormalities in the Chiari II malformationa, III: The interhemispheric cyst. J Ultrasound Med. 28(8):999-1006, 2009
                                                                              6. Moriyama E et al: Interhemispheric multiloculated ependymal cyst with dysgenesis of the corpus callosum: a case in a preterm fetus. Childs Nerv Syst. 23(7):807-13, 2007
                                                                              7. Mühler MR et al: Fetal MRI demonstrates glioependymal cyst in a case of sonographic unilateral ventriculomegaly. Pediatr Radiol. 37(4):391-5, 2007
                                                                              8. Obaldo RE et al: Congenital glioependymal cyst presenting with severe proptosis. AJNR Am J Neuroradiol. 28(6):999-1000, 2007
                                                                              9. Utsunomiya H et al: Midline cystic malformations of the brain: imaging diagnosis and classification based on embryologic analysis. Radiat Med. 24(6):471-81, 2006
                                                                              10. Pavone P et al: Callosal anomalies with interhemispheric cyst: expanding the phenotype. Acta Paediatr. 94(8):1066-72, 2005
                                                                              11. Barkovich AJ et al: Callosal agenesis with cyst: a better understanding and new classification. Neurology. 56(2):220-7, 2001
                                                                              12. Sundaram C et al: Cysts of the central nervous system: a clinicopathologic study of 145 cases. Neurol India. 49(3):237-42, 2001
                                                                              13. Tange Y et al: Interhemispheric glioependymal cyst associated with agenesis of the corpus callosum--case report. Neurol Med Chir (Tokyo). 40(10):536-42, 2000