link
Bookmarks
Aqueductal Stenosis
Paula J. Woodward, MD
To access 4,300 diagnoses written by the world's leading experts in radiology, please log in or subscribe.Log inSubscribe
0
5
2
5

KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Abbreviations

            • Aqueductal stenosis (AS)
          • Definitions

            • Narrowing or occlusion at aqueduct of Sylvius causing obstructive hydrocephalus
            • Hydrocephalus vs. ventriculomegaly
              • Hydrocephalus
                • Increased intraventricular pressure
                • Increased ventricular size
                • Increased head size
                • Noncommunicating (obstructive)
                  • CSF flow blocked within ventricular system
                • Communicating
                  • Failure of CSF resorption
              • Ventriculomegaly
                • Result of abnormal parenchymal development or destructive process
                • Normal intraventricular pressure
                • Increased ventricular size
                • Head size normal or small

          IMAGING

          • General Features

            • Ultrasonographic Findings

              • MR Findings

                • Imaging Recommendations

                  DIFFERENTIAL DIAGNOSIS

                    PATHOLOGY

                    • General Features

                      CLINICAL ISSUES

                      • Presentation

                        • Demographics

                          • Natural History & Prognosis

                            • Treatment

                              DIAGNOSTIC CHECKLIST

                              • Image Interpretation Pearls

                                Selected References

                                1. Corral E et al: Prenatal three-dimensional ultrasound detection of adducted thumbs in X-linked hydrocephaly: two case reports with molecular genetic studies. Case Rep Obstet Gynecol. 2015:561713, 2015
                                2. Emery SP et al: Fetal therapy for isolated aqueductal stenosis. Fetal Diagn Ther. 38(2):81-5, 2015
                                3. Emery SP et al: Accuracy of prenatal diagnosis of isolated aqueductal stenosis. Prenat Diagn. 35(4):319-24, 2015
                                4. Perlman S et al: Prenatal diagnosis of fetal ventriculomegaly: Agreement between fetal brain ultrasonography and MR imaging. AJNR Am J Neuroradiol. 35(6):1214-8, 2014
                                5. Serikawa T et al: Prenatal molecular diagnosis of X-linked hydrocephalus via a silent C924T mutation in the L1CAM gene. Congenit Anom (Kyoto). 54(4):243-5, 2014
                                6. Whitehead MT et al: Rhombencephalosynapsis as a cause of aqueductal stenosis: an under-recognized association in hydrocephalic children. Pediatr Radiol. 44(7):849-56, 2014
                                7. Spennato P et al: Endoscopic third ventriculostomy for idiopathic aqueductal stenosis. World Neurosurg. 79(2 Suppl):S21.e13-20, 2013
                                8. Sacko O et al: Endoscopic third ventriculostomy: outcome analysis in 368 procedures. J Neurosurg Pediatr. 5(1):68-74, 2010
                                9. D'Addario V et al: Sonographic diagnosis of fetal cerebral ventriculomegaly: an update. J Matern Fetal Neonatal Med. 20(1):7-14, 2007
                                10. Senat MV et al: Prenatal diagnosis of hydrocephalus-stenosis of the aqueduct of Sylvius by ultrasound in the first trimester of pregnancy. Report of two cases. Prenat Diagn. 21(13):1129-32, 2001
                                11. Schrander-Stumpel C et al: Congenital hydrocephalus: nosology and guidelines for clinical approach and genetic counselling. Eur J Pediatr. 157(5):355-62, 1998
                                12. Kenwrick S et al: X linked hydrocephalus and MASA syndrome. J Med Genet. 33(1):59-65, 1996
                                13. Timor-Tritsch IE et al: Transvaginal sonographic detection of adducted thumbs, hydrocephalus, and agenesis of the corpus callosum at 22 postmenstrual weeks: the masa spectrum or L1 spectrum. A case report and review of the literature. Prenat Diagn. 16(6):543-8, 1996
                                14. Levitsky DB et al: Fetal aqueductal stenosis diagnosed sonographically: how grave is the prognosis? AJR Am J Roentgenol. 164(3):725-30, 1995
                                15. Brocard O et al: Prenatal diagnosis of X-linked hydrocephalus. J Clin Ultrasound. 21(3):211-4, 1993
                                16. Schwanitz G et al: Chromosomal findings in fetuses with ultrasonographically diagnosed ventriculomegaly. Ann Genet. 36(3):150-3, 1993
                                17. Halliday J et al: X linked hydrocephalus: a survey of a 20 year period in Victoria, Australia. J Med Genet. 23(1):23-31, 1986
                                Related Anatomy
                                Loading...
                                Related Differential Diagnoses
                                Loading...
                                References
                                Tables

                                Tables

                                KEY FACTS

                                • Terminology

                                  • Imaging

                                    • Top Differential Diagnoses

                                      • Clinical Issues

                                        TERMINOLOGY

                                        • Abbreviations

                                          • Aqueductal stenosis (AS)
                                        • Definitions

                                          • Narrowing or occlusion at aqueduct of Sylvius causing obstructive hydrocephalus
                                          • Hydrocephalus vs. ventriculomegaly
                                            • Hydrocephalus
                                              • Increased intraventricular pressure
                                              • Increased ventricular size
                                              • Increased head size
                                              • Noncommunicating (obstructive)
                                                • CSF flow blocked within ventricular system
                                              • Communicating
                                                • Failure of CSF resorption
                                            • Ventriculomegaly
                                              • Result of abnormal parenchymal development or destructive process
                                              • Normal intraventricular pressure
                                              • Increased ventricular size
                                              • Head size normal or small

                                        IMAGING

                                        • General Features

                                          • Ultrasonographic Findings

                                            • MR Findings

                                              • Imaging Recommendations

                                                DIFFERENTIAL DIAGNOSIS

                                                  PATHOLOGY

                                                  • General Features

                                                    CLINICAL ISSUES

                                                    • Presentation

                                                      • Demographics

                                                        • Natural History & Prognosis

                                                          • Treatment

                                                            DIAGNOSTIC CHECKLIST

                                                            • Image Interpretation Pearls

                                                              Selected References

                                                              1. Corral E et al: Prenatal three-dimensional ultrasound detection of adducted thumbs in X-linked hydrocephaly: two case reports with molecular genetic studies. Case Rep Obstet Gynecol. 2015:561713, 2015
                                                              2. Emery SP et al: Fetal therapy for isolated aqueductal stenosis. Fetal Diagn Ther. 38(2):81-5, 2015
                                                              3. Emery SP et al: Accuracy of prenatal diagnosis of isolated aqueductal stenosis. Prenat Diagn. 35(4):319-24, 2015
                                                              4. Perlman S et al: Prenatal diagnosis of fetal ventriculomegaly: Agreement between fetal brain ultrasonography and MR imaging. AJNR Am J Neuroradiol. 35(6):1214-8, 2014
                                                              5. Serikawa T et al: Prenatal molecular diagnosis of X-linked hydrocephalus via a silent C924T mutation in the L1CAM gene. Congenit Anom (Kyoto). 54(4):243-5, 2014
                                                              6. Whitehead MT et al: Rhombencephalosynapsis as a cause of aqueductal stenosis: an under-recognized association in hydrocephalic children. Pediatr Radiol. 44(7):849-56, 2014
                                                              7. Spennato P et al: Endoscopic third ventriculostomy for idiopathic aqueductal stenosis. World Neurosurg. 79(2 Suppl):S21.e13-20, 2013
                                                              8. Sacko O et al: Endoscopic third ventriculostomy: outcome analysis in 368 procedures. J Neurosurg Pediatr. 5(1):68-74, 2010
                                                              9. D'Addario V et al: Sonographic diagnosis of fetal cerebral ventriculomegaly: an update. J Matern Fetal Neonatal Med. 20(1):7-14, 2007
                                                              10. Senat MV et al: Prenatal diagnosis of hydrocephalus-stenosis of the aqueduct of Sylvius by ultrasound in the first trimester of pregnancy. Report of two cases. Prenat Diagn. 21(13):1129-32, 2001
                                                              11. Schrander-Stumpel C et al: Congenital hydrocephalus: nosology and guidelines for clinical approach and genetic counselling. Eur J Pediatr. 157(5):355-62, 1998
                                                              12. Kenwrick S et al: X linked hydrocephalus and MASA syndrome. J Med Genet. 33(1):59-65, 1996
                                                              13. Timor-Tritsch IE et al: Transvaginal sonographic detection of adducted thumbs, hydrocephalus, and agenesis of the corpus callosum at 22 postmenstrual weeks: the masa spectrum or L1 spectrum. A case report and review of the literature. Prenat Diagn. 16(6):543-8, 1996
                                                              14. Levitsky DB et al: Fetal aqueductal stenosis diagnosed sonographically: how grave is the prognosis? AJR Am J Roentgenol. 164(3):725-30, 1995
                                                              15. Brocard O et al: Prenatal diagnosis of X-linked hydrocephalus. J Clin Ultrasound. 21(3):211-4, 1993
                                                              16. Schwanitz G et al: Chromosomal findings in fetuses with ultrasonographically diagnosed ventriculomegaly. Ann Genet. 36(3):150-3, 1993
                                                              17. Halliday J et al: X linked hydrocephalus: a survey of a 20 year period in Victoria, Australia. J Med Genet. 23(1):23-31, 1986