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Semicircular Canal-Vestibule Globular Anomaly
Caroline D. Robson, MBChB
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Persistent semicircular canal (SCC) anlage anomaly
            • Definitions

              • Dilatation of SCC & globular vestibule
              • Small or absent bone island between vestibule & affected SCC

            IMAGING

            • General Features

              • CT Findings

                • Imaging Recommendations

                  DIFFERENTIAL DIAGNOSIS

                    PATHOLOGY

                    • General Features

                      CLINICAL ISSUES

                      • Presentation

                        DIAGNOSTIC CHECKLIST

                        • Consider

                          Selected References

                          1. Intrapiromkul J et al: Inner ear anomalies seen on CT images in people with Down syndrome. Pediatr Radiol. 42(12):1449-55, 2012
                          2. Lan MY et al: Measurements of normal inner ear on computed tomography in children with congenital sensorineural hearing loss. Eur Arch Otorhinolaryngol. 266(9):1361-4, 2009
                          3. Zhou G et al: Inner ear anomalies and conductive hearing loss in children with Apert syndrome: an overlooked otologic aspect. Otol Neurotol. 30(2):184-9, 2009
                          4. Dallan I et al: Bilateral, isolated, lateral semicircular canal malformation without hearing loss. J Laryngol Otol. 122(8):858-60, 2008
                          5. Quintero-Rivera F et al: Intracranial anomalies detected by imaging studies in 30 patients with Apert syndrome. Am J Med Genet A. 140(12):1337-8, 2006
                          6. Matsunaga T et al: Familial lateral semicircular canal malformation with external and middle ear abnormalities. Am J Med Genet A. 116A(4):360-7, 2003
                          7. Purcell D et al: Establishment of normative cochlear and vestibular measurements to aid in the diagnosis of inner ear malformations. Otolaryngol Head Neck Surg. 128(1):78-87, 2003
                          8. Johnson J et al: Sensorineural and conductive hearing loss associated with lateral semicircular canal malformation. Laryngoscope. 110(10 Pt 1):1673-9, 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

                                    • Synonyms

                                      • Persistent semicircular canal (SCC) anlage anomaly
                                    • Definitions

                                      • Dilatation of SCC & globular vestibule
                                      • Small or absent bone island between vestibule & affected SCC

                                    IMAGING

                                    • General Features

                                      • CT Findings

                                        • Imaging Recommendations

                                          DIFFERENTIAL DIAGNOSIS

                                            PATHOLOGY

                                            • General Features

                                              CLINICAL ISSUES

                                              • Presentation

                                                DIAGNOSTIC CHECKLIST

                                                • Consider

                                                  Selected References

                                                  1. Intrapiromkul J et al: Inner ear anomalies seen on CT images in people with Down syndrome. Pediatr Radiol. 42(12):1449-55, 2012
                                                  2. Lan MY et al: Measurements of normal inner ear on computed tomography in children with congenital sensorineural hearing loss. Eur Arch Otorhinolaryngol. 266(9):1361-4, 2009
                                                  3. Zhou G et al: Inner ear anomalies and conductive hearing loss in children with Apert syndrome: an overlooked otologic aspect. Otol Neurotol. 30(2):184-9, 2009
                                                  4. Dallan I et al: Bilateral, isolated, lateral semicircular canal malformation without hearing loss. J Laryngol Otol. 122(8):858-60, 2008
                                                  5. Quintero-Rivera F et al: Intracranial anomalies detected by imaging studies in 30 patients with Apert syndrome. Am J Med Genet A. 140(12):1337-8, 2006
                                                  6. Matsunaga T et al: Familial lateral semicircular canal malformation with external and middle ear abnormalities. Am J Med Genet A. 116A(4):360-7, 2003
                                                  7. Purcell D et al: Establishment of normative cochlear and vestibular measurements to aid in the diagnosis of inner ear malformations. Otolaryngol Head Neck Surg. 128(1):78-87, 2003
                                                  8. Johnson J et al: Sensorineural and conductive hearing loss associated with lateral semicircular canal malformation. Laryngoscope. 110(10 Pt 1):1673-9, 2000