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Transient Global Amnesia (TGA)
Anne G. Osborn, MD, FACR
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Clinical Issues

            TERMINOLOGY

            • Abbreviations

              • Transient global amnesia (TGA)
            • Definitions

              • Sudden memory loss without other signs of cognitive or neurologic impairment that recovers completely within 24 hours
                • Both antero- and retrograde amnesia

            IMAGING

            • General Features

              • CT Findings

                • MR Findings

                  • Nuclear Medicine Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          CLINICAL ISSUES

                          • Presentation

                            • Demographics

                              • Natural History & Prognosis

                                Selected References

                                1. Arena JE et al: Transient global amnesia. Mayo Clin Proc. 90(2):264-72, 2015
                                2. Förster A et al: Value of dynamic susceptibility contrast perfusion MRI in the acute phase of transient global amnesia. PLoS One. 10(3):e0122537, 2015
                                3. Quinette P et al: Hippocampal modifications in transient global amnesia. Rev Neurol (Paris). ePub, 2015
                                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

                                          TERMINOLOGY

                                          • Abbreviations

                                            • Transient global amnesia (TGA)
                                          • Definitions

                                            • Sudden memory loss without other signs of cognitive or neurologic impairment that recovers completely within 24 hours
                                              • Both antero- and retrograde amnesia

                                          IMAGING

                                          • General Features

                                            • CT Findings

                                              • MR Findings

                                                • Nuclear Medicine Findings

                                                  • Imaging Recommendations

                                                    DIFFERENTIAL DIAGNOSIS

                                                      PATHOLOGY

                                                      • General Features

                                                        CLINICAL ISSUES

                                                        • Presentation

                                                          • Demographics

                                                            • Natural History & Prognosis

                                                              Selected References

                                                              1. Arena JE et al: Transient global amnesia. Mayo Clin Proc. 90(2):264-72, 2015
                                                              2. Förster A et al: Value of dynamic susceptibility contrast perfusion MRI in the acute phase of transient global amnesia. PLoS One. 10(3):e0122537, 2015
                                                              3. Quinette P et al: Hippocampal modifications in transient global amnesia. Rev Neurol (Paris). ePub, 2015